We'll get to that in a minute, but the last couple of weeks also delivered some good news for fans of Quora and Delicious. Both are social networking sites; Delicious has survived a near-death experience and relaunched, while Quora has made a major enhancement with the addition of an iPhone app.

Still Delicious

As you may recall, Delicious, a social media site for storing, sharing and learning about new bookmarks, was owned by Yahoo, which indicated in 2010 that the service would be killed, or in Silicon Valley-speak, "sunsetted." Delicious was sold last April. Although the idea of social bookmarking may seem dated, the Sept. 27 relaunch of the site shows the new owners have some good ideas.

The basics are about the same. Simply add a green Delicious "save" button to the toolbar of your browser and click when you come across a link to save. You can give links a title and tag them, and share them with other Delicious users.

"Stacks" are the new wrinkle. A stack is a collection of links, videos, music or pictures around a given topic. You can label them, organize them in a particular order and then go ahead and share it. The company calls them "the playlists of the Web," and that's not a bad way to think of a stack.