There seems to be a lot of evidence that having a mentor is crucial to career success and even more important when transitioning between careers. I've read that social networking sites - twitter & linked are good resources for the same, but I haven't had good luck with it. So, how do I find a UX professional that is willing to mentor me? Does someone here have time for a protege?
A mentor can be invaluable, but in my experience, those relationships emerge as the result of further developing professional relationships. LinkedIn and Twitter are great for networking, and if you use them to follow professionals and engage in ongoing dialog they can also be useful for professional development. But the kind of extended guidance of mentorship generaly requires more of a direct personal relationship.
I would suggest that your best bet here is to look around your current workplace and see if there is someone there doing UX that you have a lot of respect for. If so, think about how you can start to ask them for guidance. If there isn't anyone in your current work place I'd suggest trying to find face-to-face meetups and events in your area where you can start to connect with other folks in the field.