Social Media moves so fast, it's hard to keep up. Here are the week's top stories, in scan-friendly format. This week: * Delicious 2.0 Here at Last * Lessons Learned from Cuil: How Not to Launch * ClearStep: Social Media in the Enterprise * Mobile Web Viruses Alert * Twitter Displays its Power in Breaking News

Del.icio.us 2.0 is Here at Last

Everyone's been waiting for the new Del.icio.us (the preeminent online bookmarking site) since, oh, the last time the Nasdaq closed over 4000? Since LeBron believed in Santa Claus? A long time, anyway. And now its finally here. The new site, 'Easier, Prettier, Faster...' according to ReadWriteWeb, solves the truly appalling search capabilities which dogged user experience on the old version, which for this blogger was the only gripe he had with the service. You can examine the full range of new features here, which include new ways to sort your bookmarks, greater speed (allegedly), and more social interaction with other users (eg searching 'My Network's Bookmarks'). Oh, and its now officially at Delicious.com. A cursory glance at the first page suggests that they are going down the Digg route: promoting a wider range of stories and not focusing so much on the technology side of things. But we could be wrong. ReadWriteWeb loved the new site: 'Overall, while some of its competitors soared past Delicious in the last few months in terms of features, this update puts Delicious at the top of the pack again.' Here's the Delicious blog post announcement.

How Not to Launch Cuil

Nobody seemed too knocked out by the launch of Cuil earlier this week. We weren't mightily impressed, either. But there was some very interesting discussion on the blogosphere about how not to launch, and about how the 'hype cycle' has tightened into hours. All the hot-shot bloggers heard about the launch, had a brief look, had a bad experience, and left. And vented their disappointment on FriendFeed and Twitter. Erick Schonfeld at TechCrunch was one of those who picked up on the instant-dismissal effect, and the danger of launching before your services are watertight. More informative again is the primary FriendFeed discussion on the Cuil launch: it's well worth picking over.

Mobile Web Viruses Await

The doom-mongers have been predicting an outbreak of mobile Web viruses for quite a while, and its never really happened. But Sarah Perez at ReadWriteWeb reckons maybe we've rode our luck for too long, and that the time of Mobile invasions is at hand. Sarah looks at the issues involved in some depth here, seeing what's out there, and examining whether there really is a clear and present danger to your handset. Personally, this blogger doesn't see getting rid of mobile viruses as too big of a deal in the long run, as the handset can presumably be interfaced akin to an external HDD for a 'real' machine and wiped easily using your desktop machine's AVG or whatever (although I personally kinda like fighting the little buggers face-to-face on the machine they're on, so to speak, with HiJack This, a RegEditer and a couple of cans of beer). But of course handsets carry all sorts of sensitive information, and propagation via bluetooth etc. is potentially breathtakingly fast so the damage may already be done. So, er, I suppose it is a big deal then. Yeah. You better look at this, after all.

ClearStep: Social Media in the Enterprise

ClearStep is a new online community solution from Jive Software, which we covered earlier this week. Our own Marisa Peacock explains: "Clearstep allows professionals to have a place to interact, share best practices, and gain access to a much wider range of perspectives on common community and collaboration issues. It is intended for all social and enterprise 2.0-focused professionals, including Jive customers."

Twitter's Power to Break News

The stunning power of the humble micro-blogger was in evidence again this week, when NASA announced to the world the (wonderful, amazing, miraculous) news that there was indeed water on Mars. VentureBeat follows the history of a Tweet, and how the news propagated.

Flickr Co-founder's New Startup

Caterina Fake, half the brains (and all of the beauty) behind Flickr, is stepping into the Social Media ring once again with a service called hunch. We don't know much about what hunch is going to do, but you can read about it at Inquisitr nonetheless.