One of the common problems people have with boardgames is a lack of players - it's not always easy to round up enough people. That problem doesn't have to be a showstopper though - there's brettspielwelt.de, an online portal for a bunch of boardgames, such as my current favorite, Caylus:

There's a client you can download as well, if you don't want to play inside the browser. One caveat - players there expect you to play fast.