you could look at fictfact.com - it is good for tracking series - as for genres - I tend to just take a guess - you can normally get a pretty good guesstimate by the story line/plot elements
I use www.fantasticfiction.co.uk quite a bit for both personal and work (I work in a library). I find it's a great resource for not only series titles, but also the entire list of an author's work.
I know Goodreads (well um yeah!)
There's Amazon
I'm thinking specifically series related?