TopPocket.net is a relatively new site that now features a large collection of links. Despite the name, the site is not completely focused on Pocket PC devices and featurea a large number of categories, including Portable Media, Tablet PCs and UMPC, software and hardware reviews and tutorials. A nice feature is that sites can be rated and reviewed by visitors (including Gadgetorama).
The site already features 380 links; more than enough to waste a few hours!