Much has changed since we examined the ongoing war between Facebook and Twitter in the spring of 2010. The stakes are higher, the competition has increased, and we see LinkedIn and Google roaring into the social networking arena like never before.

Researchers have figured out how to to crack captchas, making it possible to launch automated attacks against sites such as Microsoft, eBay and Digg where opening phony accounts could be turned into cash.

Earlier this month, we wrote about a quirky new character profile Website, EightBit.me. Even if you've never heard of Eightbit.me, there's a good chance that you know what Digg.com is. The relation between the two? They were both designed by the same guy.

Digg founder Kevin Rose blogged this week that Apple will announce the iPad 2 in the next 3 or 4 weeks -- maybe even Feb. 1.

Digg, the pioneering social news site whose traffic has been faltering, is poised to make a comeback, now that the company is again focused on improving and extending its service, Digg founder Kevin Rose said Wednesday.

Some people just don't like change. Less than a week after Digg released version 4 of its social news-sharing site, fans have rebelled, flooding Digg with links from a rival sharing site, staging a "Quit Digg Day," and prophesying a major drop-off in traffic if the site doesn't return to its roots. Has Digg dug its grave, or is this yet another kneejerk neophobic reaction?

Social news site Digg is introducing an advertisement platform that will allow its users to vote advertisements up and down as they now do with news stories.