Web 2.0 / 3.0 and Social Networking
Web 1.0 Web 2.0, 3.0 and social networking - what is it all about?
What is Web 1.0?
Self-entertainment and download.
What is Web 2.0?
Self-publishing and upload.
The second-generation of Internet-based services that let people collaborate and share information online. Some examples of applications and services with strong Web 2.0 influences are bookmark sharing, Google AdSense, RSS web feeds, Wikipedia, 新浪微博, OpenRice, Google+, Twitter, Instagram and the thousands of mashups currently in existence.
What are social networking applications?
There's a huge difference between social networking and social engineering. Social engineering is a term related to hacking. Social networking services relating to the web are where a group of people launch a highly interactive service based on common interests between users and easy to use communications tools to detail and promote those interests to others. A single recommendation may wield a great deal of purchasing influence.
A great example of social networking is the hugely popular MySpace.com - an online community that lets you meet your friends' friends and colleagues. From an ecommerce aspect, LinkedIn is a great example.
General user communities will also become increasingly important - using forums as a marketing tool only or just for traffic generation will fall by the wayside in many cases.
Getting into Web 2.0
For starters, I suggest if you have content you wish for others to reproduce, while offering articles directly from your site, you may want to consider automating this somewhat using an RSS web feed - it's pretty simple to implement.
Invite developers to comment on your feeds; ask them how it should evolve. You may find some of them wanting to collaborate with you in improving your feeds in a way that will benefit you.
What is Web 3.0?
Self-Creation and immersion.
This is about semantic web (or the meaning fot data), personalization (eg. iGoolge), intelligent search and bebaviour advertising among other things.
Nova Spivack建議將Web 3.0的定義延伸至當前各大技術潮流邁向新的成熟階段的具體體現，包括：
無處不聯網：寬帶網普及和發展，移動通訊裝置的互聯網介入。(例如：平板電腦)
網絡計算：「軟件就是服務」的商業模型，Web服務互用性，分佈式計算，網格計算和效用計算（又「雲端計算」）。
開放技術：開放API和協議，開放數據格式，開源軟件平臺和開放數據（如創作共用，開放數據許可）。
開放身份：OpenID，開放名聲，跨域身份和個人數據。
智能網絡：語義網技術比如資源描述框架，網絡本體語言，SWRL，SPARQL，語義應用程式平臺和基於聲明的數據儲備。
分佈式數據庫：萬維數據庫（「World Wide Database」，由語義網的技術實現）。
智能應用程式：普通語言的處理[11]，機器學習，機器推理，自主代理
Source: Wiki
