Don't rely so much on email or easy means of communication.

Get out there and go to Greek life office and find out which sororities will be holding Spring Recruitment. Your best bet would be to go after Winter break, that way chapters know how many of their members are returning/have left. While you're there, let them know that you're interested in Spring Recruitment.

GC is a great place to get general advice, but one shouldn't rely solely on this site (or websites in general) to get information.

After all, that's what recruitment is for -- meeting the sisters and finding out what the chapter's all about.