Wich are the best IBL analysis tools on the web?

[AndrewStarlike]

I know and use very often SEOmoz OSE. My question is about non-SEOmoz tools wich can detect a specific domain backlinks and all kind of parameters especially the IP of the backlinks. So: what do you use/recommend?

[StalkerB]

Not cheap but you could maybe get a lot out of - http://www.syntryx.com/

It'll give you IP, other sites that person owns, what vertical they're in, strength of sites and dozens of other things.