I see alot of agents who want others to just hand over their hard earned contacts online.  Many will but there is a time that once the contact info hits the web, the lender changes their contact info or email addresss.

Some tips:

Email the person instead of asking for them to give up their contact online. This keeps it semi private and protects the person giving out contact info.  Good contacts at banks are hard to get and harder to keep if you give out there info to everyone

Reciprocate, if someone needs contact info and you can help, please reciprocate

Places to find contact info:

Short Sale Superstars of course

www.jigsaw.com  If you have never used this, please take a look

Google

Customer service or tellers at a bank. Did you know that BofA tellers have access to all of the short sale department contact information?  Now you do!