One of the themes of Web 2.0 (if there is such a thing) is that all of the data that gets aggregated by Web applications and social networks can be a very powerful thing, and can in some cases justify giving services away for free — provided people who use those services agree to let their data be sliced and diced and parsed in various ways, whether to generate ads or whatever.

After deliberation in the Craigslist forums, the massively popular online classifieds site will begin imposing a fee on job postings in a quartet of new markets.

The Internet is helping citizens to take the law into their own hands, and if the trend continues, it may lead to online registries devoted to more than just stolen bicycles.

If opening the Kijiji classifieds site to American users draws business away from Craigslist, eBay stands to lose a little bit too.

Ready to get more out of social media? The leaders in social media marketing dish on how to get in on the action–everything from why to where to how.

In case you haven’t been keeping track, it’s May already — and that can only mean one thing: the mesh conference is less than a month away.

Senator Byron Dorgan (D-ND) criticized both AT&T head Ed Whitacre and Senator Ted Stevens (R-AK) for their efforts against Network Neutrality protections during a conference call with reporters today, as the SaveTheInternet.com coalition celebrated its first anniversary.

The e-vice squads are a-crackin’ down – you’re not even allowed to have virtual fun anymore. The FBI considers breaking up Second Life gambling rings; Craigslist is packed with perverts; and YouTube just wusses out, a sin in itself.

Imitation may be the sincerest form of flattery, but paying a competitor to do your job for you may be the most definitive form.

Bulldog Reporter, Advanced PR Forum, Olympic Collection, Los Angeles

Somewhere at the top of the Silicon Valley, Craigslist has upset the status quo of publishing; only the most dedicated websites can survive the hazardous venture into the Valley and face down the Colonel Kurtz of online classifieds.

If there were a contest for dramatic Web 2.0 stories, these two bloggers would be neck and neck for the winner this week. While their anecdotes demonstrate the effectiveness of a little buzz, the social media snowball effect has had them bouncing around a little more than they wanted – well, it worked out for one of them in the end.

The number of people going online to seek housing information has doubled since 2000, the Pew Internet and American Life Project reported. As that number increases, it seems local advertisers and business owners are missing out on some golden opportunities. There has to be a way to combine local targeting and online housing listings.