Questionable content - An online comic updated every weekday.
Wikipedia - A great resource for all sorts of information.
Panoramio - A site that I upload pictures I take to. Most are not very intresting but you may find something of interest there.
Traffic England - Provides updates on the traffic on the UKs motorways and A roads. It also can tell you the weather at various points on the motorway network.
ZamZar - Zamzar is an online file conversion site, it can convert a range of files. The site is free to use and is fairly fast.