From the my-opinion-might-suck-but-I-say-it-anyway department..
I’m currently using Xing and LinkedIn, and I must say I do like Xing more. Yeah, it’s European! That’s already an important factor for me. But the website is just a tick smoother and nicer structured than its older cousin.
Anyway, wanne get Xinged? Ask me! I’m not the inviting type, don’t want to bother people with these community websites. But being on both Xing and LinkedIn is good for.. karma or something.