A recent survey of companies on the London Stock Exchange found that 7 out of 10 have not claimed their company or brand name on Twitter, making them vulnerable to having them taken by unauthorized users, which happened to Exxon Mobil this month.

While many companies say Web 2.0 tools will boost employee productivity and recruitment, they still fret over security and potential misuse of the tools.

A new Web-based application tracks user behavior after they have downloaded a PDF.

The pharmaceutical behemoth was an early adopter of Enterprise 2.0 tools and now is stepping up its efforts in RSS and social networks as other technologies like its Pfizerpedia wiki take hold.

Just as Excel worked its way into companies under the radar of IT to hook users, many of who are completely addicted to is, mashups could follow the same path.

Instead of merely bringing back the most popular results for health-related searches, Hakia cross-references its results with sites certified by a national nonprofit as providing quality data.

New online magazine aimed at helping guide Twitter users on how best to use the mobile social networking tool.

Unlike many of the few government agency blogs, TSA has used it new blog to post timely topics and put into place real changes from passenger suggestions.

A new wiki tracks popular results in Democratic primaries and caucuses against the superdelegates and which candidate they have pledged to support

Google Health Beta log-in page appears, and notes that users can use site to build online health profiles for themselves.

While tracking Internet traffic in Iowa predicted Obama's big win, will it be accurate for who will win in New Hampshire?

Ah, finally a psychological explanation for the seemingly increasing trend of rude, obnoxious and down-right abusive behavior online.

Online communications reduces a person’s sense of his or her own identity, thus providing the means for some to be rude and aggressive when they normally wouldn’t be in person, according to research published Monday on New Scientist’s blog.

In this week’s Web RoundUp, widgets go to Washington and WordPress bloggers can get social with a new plug-in.

WashingtonWatch, a wiki that allows users to post comments on all pieces of legislation before Congress, is using widget technology to help Americans become more aware of public policy.

The state of Missouri is taking its IT recruiting efforts to another world – Second Life. The state within the last few weeks has set up a presence in the virtual world aimed at helping to expand its current IT recruiting efforts, said Paul Wright, IT director for the Missouri Department of Elementary and Secondary Education.

So far the state, which plans to launch a job fair in Second Life in the coming weeks to feature the state CIO’s avatar strolling the virtual streets, has posted notices about available IT jobs in Second Life and posted slide presentation about the state, Wright said.

Diplomatic blogging. No, this is not a reference to enforcing civility in the blogosphere. Instead, it is a reference to the U.S. State Department's new blog, which it launched this week.

Dipnote as it is called ("dipnote" being how the State Department refers to a diplomatic note, the way governments formally communicate with one another) is aimed at taking readers behind the scenes at the department and to "provide you with a window into the world of the people responsible for our foreign policy," noted Sean McCormack, who heads up public affairs at the department.