The folks over at AppAppeal.com have put together a very cool web 2.0 world map showing off the logos of web companies to make a world mosaic.

AppAppeal looks at and reviews web apps and does comparisons between them. For a quick example see the Bookmarking section. They spell out the details with short and to the point descriptions which can help someone looking for more information. Obviously they have a large library of apps to go, but this is certainly a good start.