Caiwangqin's blog

CHAIHUO MAKER SPACE

2012-02-08T10:30:00.000+08:00

There are something you can't missing in Nanshan district of Shenzhen China, the one of them is CHAIHUO MAKER SPACE (柴火创客空间). if you want to be entrepreneur for your own Start-up, you could meet some people interesting in your project there, find collaborators, marketer working together get the project done. Thanks Michelini get me there yesterday night, he is one guy speaking English but love to use Weibo, has a tablet translator to read Chinese, funny.

Yesterday was the first SZ Team Startup Tuesday Meetings of Chinese Dragon Year, Michelini want to make the meet up weekly, i hope this will make Shenzhen start-up community active. Haegwan Kim bring his startup platform Lifecraft, this platform focus on collaboration for beginning start-up projects, to help entrepreneur get contributors work together, and feedback. i thought it's a stackoverflow and basecamp mashup, but have CONTEXT on user profile, let entrepreneur easy to find contributor to get wishes done.

CHAIHUO has lot's of event allow free to join, another meeting organized by Shenzhen DIY Lab (深圳DIY实验室) every Thursday. Free party, Open source! It worse to go when you have ideas and live in Shenzhen.

Happy new year!

2011-12-31T09:51:00.000+08:00

Time is fast, 2011 is gone, 2012 is coming. In the past year, i spent more and more time on Twitter, Path and other social apps with iPhone, less time on Blogger, but i still remember this is my blog, my friends and readers may expect something here, so i come back here say Happy new year to everyone.

There's one thing i'm proud to mention we've done in 2011, It's Jetlun cloud portal, an Smart Energy and Home automation system, here is a screenshot for dashboard.

Uploaded with Skitch!

I hope 2012 is not the end of world!

Try iPhone version Blogger

2011-11-17T15:01:00.001+08:00

It's good to use iPhone version Blogger post photo blog, and have location in blog post. Will Blogger's future be micro blog like Tumblr or Twitter? Not easy to input long text on iPhone, i'm glad to see the dead GWF doesn't block it so far.

How to migrate Linode from Dallas to Tokyo?

2011-10-10T21:15:00.001+08:00

Open a ticket request migrate linode instance to Tokyo
Linode customer service will reply the ticket notice your IP address will change, if this is acceptable, Linode will configure migration to Tokyo.
Log into Linode Manager, shut down, and click the migrate button to move to new server, it will take several hours move data from Dallas to Tokyo datacenter.
Boot linode instance
Setup network from "Remote Access" in Linode Manager, here you have to use command "ifconfig -a" see if your eth0 changed to eth1, then setup:
/etc/resolv.conf, update nameserver to DNS resolvers in Remote Access interface
/etc/network/interface, setup eth0 or eth1.
Update dns record to new IP.

新浪微博营销

2011-08-16T17:29:00.001+08:00

Posted via email from Caiwangqin's post

Setup new macbook for work

2011-05-31T15:42:00.001+08:00

Setup softwares

System update to 10.6.7
Xcode 4.3
Jitouch
Shimo
Sparrow 1.2
Textmate 1.5.10 + TextMateJ2.ttf
Dropbox
BoxSync
Skype
Adium
QQ
Visor Terminal Extension
Office 2011
iWorks 09
Firefox4
Chrome + Plugins

Proxy Switchy!
1Password

1Password
Folx 1.0
Things
BetterZip
FIT
Install Purchases software from Mac App Store

Setup packages

Homebrew

git
subversion

rubygems 1.7.2

bundler 1.0.12
pow
powder

博文视点Openparty（深圳站）暨珠三角技术沙龙活动后记

2011-05-16T10:05:00.002+08:00

博文视点Openparty（深圳站）暨珠三角技术沙龙活动, a set on Flickr.

1, 使用安装了中国区地图偏移校正补丁的Google maps，iPhone 导航功能还是不错的，方便找到会场。

2, 珠三角技术沙龙人气很旺，深圳同学参与热情，还有很多来自广州，气氛融洽。
博文视点奖品丰厚，很多同学领到了技术畅销书，还有购书卡。

3, Topic 质量不错，阿朱和各位同学的演讲主题都很给力。

4, 虽然是 Openparty 的名义，但一个下午安排了8个 Topic 演讲，没有 Openparty 的时间。

5, 珠三角技术沙龙官方网站：http://techparty.org/

百度Web APP应用开发者大会演讲PPT

2011-05-11T09:03:00.000+08:00

昨天在百度Web APP应用开发者大会深圳站上，与参会者分享了“Ruby on Rails敏捷开发实践”，作为一个中国互联网从业人员，非常高兴看到越来越开放的互联网应用。应用开发者大会还在进行中，百度推进我国互联网应用开发行业发展的举动值得关注。以下是我的演讲PPT:

Dive into Rails 3

2011-04-27T10:09:00.000+08:00

竞相“开放”的平台

2011-04-15T21:44:00.004+08:00

新浪微博开发平台

http://open.t.sina.com.cn/

腾讯社区开放平台

http://opensns.qq.com/

盛大开放平台

http://open.sdo.com/

百度开放平台

http://open.baidu.com/

淘宝开放平台

http://open.taobao.com/

苹果商店

http://store.apple.com/us

from group "互联网创业 (Internet Startup Bootcamp)"

High Performance Weibo QCon Beijing 2011

2011-04-11T21:57:00.001+08:00

Check out this SlideShare Presentation:

High Performance Weibo QCon Beijing 2011

View more presentations from Tim Y.

From mysql to MongoDB（MongoDB2011北京交流会）

2011-04-10T10:43:00.001+08:00

From mysql to MongoDB（MongoDB2011北京交流会）

View more presentations from Night Sailer

网站盈利的理论

2011-04-08T16:05:00.001+08:00

1.250定律

拉德认为：每一位顾客身后，大体有250名亲朋好友。如果您赢得了一位顾客的好感，就意味着赢得了250个人的好感；反之，如果你得罪了一名顾客，也就意味着得罪了250 名顾客。在你的网站访客中，一个访客可能可以带来一群访客，任何网站都有起步和发展的过程，这个过程中此定律尤其重要。

2.达维多定律

达维多认为，一个企业要想在市场上总是占据主导地位，那么就要做到第一个开发出新产品，又第一个淘汰自己的老产品。国内网站跟风太严重，比如前段时间的格子网，乞讨网，博客网，一个成功了，大家一拥而上。但实际效果是，第一个出名的往往最成功，所以在网站的定位上，要动自己的脑筋，不是去捡人家剩下的客户。同理，买人家出售的数据来建站效果是很糟糕的。

3.木桶定律

水桶定律是指，一只水桶能装多少水，完全取决于它最短的那块木板。这就是说任何一个组织都可能面临的一个共同问题，即构成组织的各个部分往往决定了整个组织的水平。注意审视自己的网站，是速度最糟糕？美工最糟糕？宣传最糟糕？你首先要做的，不是改进你最强的，而应该是你最薄弱的。

4.马太效应

《新约》中有这样一个故事，一个国王远行前，交给三个仆人每人一锭银子，吩咐他们："你们去做生意，等我回来时，再来见我。"国王回来时，第一个仆人说："主人，你交给我们的一锭银子，我已赚了10锭。"于是国王奖励他10座城邑。第二个仆人报告说："主人，你给我的一锭银子，我已赚了5锭。" 于是国王例奖励了他5座城邑。第三个仆人报告说："主人，你给我的一锭银子，我一直包在手巾里存着，我怕丢失，一直没有拿出来。"于是国王命令将第三个仆人的一锭银子也赏给第一个仆人，并且说："凡是少的，就连他所有的也要夺过来。凡是多的，还要给他，叫他多多益善。"这就是马太效应。在同类网站中，马太效应是很明显的。一个出名的社区，比一个新建的社区，更容易吸引到新客户。启示是，如果你无法把网站做大，那么你要做专。作专之后再做大就更容易。

5.手表定理

手表定理是指一个人有一只表时，可以知道现在是几点钟，而当他同时拥有两只表时却无法确定。一个网站，你只需要关注你特定的用户群需求。不要在意不相干人的看法。

6.不值得定律

不值得定律：不值得做的事情，就不值得做好不要过度seo，如果你不是想只做垃圾站。不要把时间浪费在美化再美化页面，优化再优化程序，在你网站能盈利后，这些事情可以交给技术人员完成。

7.彼得原理

劳伦斯.彼得认为：在各种组织中，由于习惯于对在某个等级上称职的人员进行晋升提拔，因而雇员总是趋向于晋升到其不称职的地位。不要轻易改变自己网站的定位。如博客网想变门户，盛大想做娱乐，大家拭目以待吧。

8.零和游戏原理

当你看到两位对弈者时，你就可以说他们正在玩"零和游戏"。因为在大多数情况下，总会有一个赢，一个输，如果我们把获胜计算为得1分，而输棋为-1分，那么，这两人得分之和就是：1+（-1）=0不要把目光一直盯在你的竞争网站上，不要花太多时间抢它的访客。我们把这些时间用来寻找互补的合作网站，挖掘新访客。

9.华盛顿合作规律

华盛顿合作规律说的是：一个人敷衍了事，两个人互相推诿，三个人则永无成事之日。如果你看准一个方向，你自己干，缺人手就招。不要轻易找同伴一起搞网站，否则你会发现，日子似乎越过越快了，事情越做越慢了。

10.邦尼人力定律

一个人一分钟可以挖一个洞，六十个人一秒种却挖不了一个洞。合作是一个问题，如何合作也是一个问题。你需要有计划。

11.牛蛙效应

把一只牛蛙放在开水锅里，牛蛙会很快跳出来；但当你把它放在冷水里，它不会跳出来，然后慢慢加热，起初牛蛙出于懒惰，不会有什么动作，当水温高到它无法忍受的时候，想出来，但已经没有了力气。如果你是soho，注意关注你的财务。不要等到没钱了再想怎么挣，你会发现那时候挣钱更难。

12.蘑菇管理

蘑菇管理是许多组织对待初出茅庐者的一种管理方法，初学者被置于阴暗的角落（不受重视的部门，或打杂跑腿的工作），浇上一头大粪（无端的批评、指责、代人受过），任其自生自灭（得不到必要的指导和提携）。做网站毕竟要遭遇这样的阶段，搜索引擎不理你，友情链接找不到，访客不上门。这是磨练。

13.奥卡姆剃刀定律

如无必要，勿增实体。把网站做得简单，再简单，简单到非常实用，而不是花俏。google的首页为什么比雅虎好？

14.巴莱多定律(Paredo 也叫二八定律)

你所完成的工作里80%的成果，来自于你20%的付出；而80%的付出，只换来20%的成果。随时衡量你所做的工作，哪些是最有效果的。

from group "互联网创业 (Internet Startup Bootcamp)"

China on Rails - Chrome Web Store

2011-04-06T19:10:00.003+08:00

China on Rails - Chrome Web Store, originally uploaded by caiwangqin.

I just created a Google Chrome app for ChinaonRails, you can install it to you Chrome now, please fell free to have a try.

Click here to install it for your Chrome

Time to move on...

2011-04-01T11:04:00.002+08:00

Yes, this is not a rumor, after discussed with my partner, i resigned Bindo Labs yesterday, which i co-founded since May 2010, an HK-registered Start-up Company focused in International e-Commercial Market. I really hated it's not being public by 11 months development. Why i left, i'm getting super tired and we lack of communication beside New York and Shenzhen, i'm not happy to work with people do not respect each others. Actually Bindo.com is being online private beta for several months, and i think it will be public soon, best wishes!

In the past few years, i lead development team make ideas happen, and we had an operation team to promote it. Now i like small ideas much more, which can be implemented in 3 months, I don't know what I'm going to do next, I'll make my own small ideas come true, take some time off stay with my family before I start job hunting.

Pitching Bindo

2011-03-30T14:42:00.001+08:00

Hello Amazon EC2

2011-03-21T20:17:00.000+08:00

Step by step Launch Instance on Amazon EC2.

We have to pay attention on the Security Group, this is firewall on EC2, you have to enable some inbound port let services available for users.

now you have a clean machine running.

Useful redmine plugins

2011-03-15T10:32:00.001+08:00

redmine backlog:

https://github.com/relaxdiego/redmine_backlogs

knowledgebase plugin:

https://github.com/alexbevi/redmine_knowledgebase

image lightbox plugin:

http://www.redmine.org/plugins/redmine_lightbox

schedules plugin:
http://redmineblog.com/articles/schedules-plugin-v-0-4-0-review/

redmine attach_screenshot directly
http://www.redmine.org/plugins/redmine_attach_screenshot

Which cloud server should we choose?

2011-03-01T18:23:00.001+08:00

In order to find a good and cheap cloud hosting service to deploy our website powered by ruby on rails, i have tried lot's of cloud server hostings, include Engine Yard AppCloud, Linode, Voxel VoxCLOUD and rackspace cloud.

Engine Yard is developmented for Rails, and it's build on Amazon EC2. it support very friendly deploy web interface, but it also has constraints for install UNIX packages, if you do not understand ey cloud recipes, it may lost configration when you update instances.

but the price is cheap against other cloud services with save RAM, CPU and Disk space.

Linode is a very popular VPS for china mainland user as a proxy, who want to use Facebook or Twitter, which is blocked by chinese government. the speed is fast in mainland and the price is cheap, but we don't want to use it for our production hosting.

VoxCLOUD support a client tool for manage could servers, it even has a iphone version, but i don't need it for most of time.

Compare with Engine Yard, Voxel's price is not cheap, the default price of 1 Core 10 GB storage VoxCLOUD can not use for production. if we upgrade the core and storage, the price will raise up, more than EngineYard and only has 100 GB storage.

i was thought rackspace is more expensive than others, but rackspace cloud is not expensive, the price is almost the same as Linode. i have heard that they had better customer service, now we use it for SCM system server.

Based on my testing, Engine Yard AppCloud maybe is the best hosting for Ruby on Rails Application so far.

Compare EngineYard AppCloud and Voxel VoxCLOUD

2011-02-18T17:24:00.000+08:00

Hardware (instance)	EngineYard AppCLOUD	Voxel VoxCLOUD
CPU	5ECU	2 Core(s)
RAM	1.7GB	4GB
Storage	350GB	100GB

Summary	High-CPU Medium Instance 1.7 GB of memory, 5 EC2 Compute Units (2 virtual cores with 2.5 EC2 Compute Units each), 350 GB of local instance storage, 32-bit platform	2 Dedicated CPU Cores 4GB of Fast DDR3 RAM 100GB of Cloud Storage


Platform bit	32	32/64
IP	2 (one internal, one extrnal)	2 (one internal, one extrnal)
Database auto daily backup	Yes	No
Snapshot	Yes	No

Price with 2 instances	$0.40/hour, $308/month	$0.23/hour x 2 = $0.46/hour, $328.4/month

Bindo implementation tools

2011-02-14T17:59:00.001+08:00

Bindo implementation tools, originally uploaded by caiwangqin.

All development tools for implement bindo.com we are using.

互联网创业公司每天可以利用的在线服务

2011-02-14T17:01:00.001+08:00

1. 基于Web的客户管理服务

提供这样服务的公司其实很多，我举个例子有zendesk

2.email递送服务

发送重要的交易类邮件（注册确认，密码取回，订单通知等）

免受 SPF记录，黑名单白名单，email服务器过载的困扰

我推荐的是sendgrid

这个我想找国内的服务商好像没找到

3.营销email和邮件列表

发送新闻邮件。

不晓得ushi用的是啥系统：）

这个我推荐mailchimp或者getresponse

4. 嵌入式本地化管理

假如你管理的是跨语言的系统，嵌入式的本地化管理会帮助你大幅度降低译员管理的成本

市场上也有较多类似的, 但是人工翻译的并不多，这方面我正在开发类似的服务接口。

回头会先推中外文本地化翻译的接口，品牌定为chinesetranspro

5.API 流量管理

有效跟踪API的来源和流量

这个比较专业，运用的公司其实不会太多，Apigee是我觉得不错的一个

6.非App内容的管理

选择一个好的CMS系统也很重要，其实你也有大量开源的系统可以用

这个我就不举例，市场上实在太多

7.实时数据分析

站点访问数据的实时分析，是的，已经有这样的服务了

Chartbeat，我认为这个很酷

8.半实时数据分析

可以安装在你自己网站上的app，5分钟更新一次数据，比Google Analytics要快

haveamint，这个也很好

9.开发项目管理和bug跟踪

PivotalTracker，这个是软件工程师和我推荐的，我自己没有用过

10.企业销售管理和CRM

我承认他有点贵。呵呵

我觉得salesforce很贵，sugarCRM据说不错，也有免费版本，还有pipejump这样的小公司，可以说针对不同公司的不同需求来选择吧

11.在线文档签名

这个东西我觉得非常实用，尤其是Iphone和Ipad流行的今天（当然还有更多的phone和pad）

RightSignature，以后法律文件可以通过这样的插件来在线签名

12.远程会议

多人的远程会议可以选择比skype更可靠的服务

gotomeeting

13.基于web的企业客服管理工具

这个国外的人用的比较多，GetSatisfaction评价比较高，我个人还没意识到这个有多大用处

14.账务管理和发票管理

这个提供的公司很多

15.在线备份和文档分享

Box.net, 据说dropbox也不错，还没有测试

还有超赞的evernote，强力推荐，免费版本一个月可以传60M，当然国内的山寨版本麦库也很不错，最重要的是免费版本容量也很大

from "互联网创业 (Internet Startup Bootcamp)"

Useful test helper with rspec for write test code

2011-02-12T10:27:00.000+08:00

assert_difference

http://shanesbrain.net/2007/5/24/assert_difference-exposed

* Stub - method with canned response
* Mock - object with canned response

http://railsforum.com/viewtopic.php?id=16758

Factory

https://github.com/thoughtbot/factory_girl_rails

factory_girl is a fixtures replacement with a straightforward definition syntax, support for multiple build strategies (saved instances, unsaved instances, attribute hashes, and stubbed objects), and support for multiple factories for the same class (user, admin_user, and so on), including factory inheritance.

Good lucky to my partners

2011-01-13T16:14:00.000+08:00

Today is an important day for our new venture, after 7 months development in Shenzhen, my partner is in the airplane to New York now, They'll meet up some customers and show them our platform, we'll be public soon.

纪念中文网志年会 cnbloggercon 2010

2010-11-20T11:24:00.001+08:00