Interesting article on The 2006 Best of Web 2.0. ("Web 2.0" is just a buzzword, guaranteed to make most techies retch, for a supposed new paradigm shift in the internet.) But basically it's just a bunch of links to new sites that are proving to be particularly useful. I clued into it because I was already using a full 7 of the 10 sites. So, take my word for it, there will be something useful here for you. Here's a rundown of their picks, with my comments:

Flickr - essential for photo sharing.

Vimeo - basically, Flickr for video. Seems like it might be useful but I don't do a lot of video. Don't know how it compares to YouTube or Google video.

Del.icio.us - for tagging and sharing of bookmarks. I'm enjoying this more the more I use it.

Digg - essential for techie news. I check it more often even than SlashDot these days.

Bloglines - for aggregating feeds from blogs, news, or anything else with an RSS feed. Dare I use the word "essential" again?

Netvibes - slickly lets you build a page made up of all your favorite services, blogs, and other info. I just signed on, and this one is really, really cool. For amusement, add a Flickr content panel that searches on the keyword "drunk".

Writeboard - lets you create a document that's editable by people all over the net. I can't think of a use for this right now but I could see it being useful at some point.

Google maps - great, but would be more useful if there were better Australia map data.

Google local - again, this is probably more useful for those of you in the States.

Meebo - combines your AOL, MSN, Google, and Yahoo instant messengers into a web page. Only useful in getting around a workplace ban on IM chatting, as far as I can see.