• Obama 2012 campaign playlist revealed courtesy of Spotify

  Depending on your taste in music and tolerance for others’ tastes, President Barack Obama’s latest social media move – sharing his 2012 campaign playlist via streaming music website Spotify – might be a case of over-sharing: Ricky Martin, REO Speedwagon and James Taylor all made the cut.

• Before Facebook: How other recent dot-com IPOs have fared

  Although Facebook (FB - to be traded on NASDAQ or NYSE) is by far the most high-profile dot-com company to go public over the past year, it is actually one of several companies that have led to a revival of web company IPOs. And while many dot-com IPOs have been long on hype, they haven't yet paid off in terms of shareholder value.

• Facebook ripe for ridicule as it suffers outage a day after IPO filing

  Social networkers resorted to Twitter during and following a brief Facebook outage on Thursday, a day after the company filed for its initial public offering.

• 9 "university researcher approved" tips for awesome Tweeting

  Researchers from Carnegie Mellon, the Massachusetts Institute of Technology and Georgia Tech have issued a list of 9 tips for better tweeting based on a study of Twitter usefulness (see "Most tweets are useless, Twitter users say").

• Most tweets are garbage: Twitter users

  Twitter has been celebrated for its ubiquity and impact on world events from natural disaster recovery to political uprisings. But researchers from a group of big time universities have found that useful tweets are few and far between.

• Wikipedia celebrates a decade of edit wars, controversy and Internet dominance

  Wikipedia and its users are planning more than 300 celebration events across six continents for the 10th anniversary of the free, online encyclopedia that has become an Internet juggernaut by spreading access to information with a model that lets anyone edit its articles.

• Enterprise 2.0 changing the way we work

  Sure, companies have started using Web 2.0 tools, but one man says we've only seen a glimmer of the serious change that they're going to bring to the way we do business.

• No to SQL? Anti-database movement gains steam

  The meet-up in San Francisco last month had a whiff of revolution about it, like a latter-day techie version of the American Patriots planning the Boston Tea Party.

• Open source, Web 2.0 gain appeal as IT budgets shrink

  CPS Energy, the largest municipality-owned gas and electric company in America, needed to get a better grip on its budget and its budgeting process. Since CPS Energy was an enterprise SAP user, more SAP AG software was the obvious and lowest-risk way for CIO Christopher Barron to go.

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  Farming 2.0

  In this final part of Computerworld's series on technological innovations shaping Australian farming, the founding director of Efficient Farming sheds light on how the concept of building an online community for the farming community was born.

Whitepapers about web 2.0

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  Protecting Generation Web

  From data privacy to personal safety issues, cyber-bullying, inappropriate content and malware, schools are facing an increasingly difficult task when it comes to allowing young people to spread their online wings without compromising their safety and personal development. The reality that most schools are catering to the needs of mixed age groups and abilities, and it’s easy to understand why a simple stop and block approach won’t work. Learning environments are, by nature, flexible. It stands to reason that the IT resources used in them should be flexible too. Read on.

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  Managing Trust - Data protection and compliance for financial services

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  Look both ways - Protecting your data with content inspection

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  HTML5 and security on the new web