If you aren't already, join the the state psych association where you are now and where you feel you will likely want to practice -- you're lucky if they are one and the same!
Every association offers sharply discounted student affilate rates (usually between $15 - 35/yr)
There could be a long and loud debate about whether it is worth your while to join APA (or, more specifically, its student division, APAGS). But well worth considering is joining the APA division(s) which represent the area(s) of psychology which interest you. Again, they are are discounted membership rates.
Get on their EMail listserve. Lurk for awhile and then start asking questions.
If you can at all, attend/present at state/regional/divisional/national conventions. (I started my college teaching after chatting someone up at an APA luncheon.)
This is indeed a profession built upon networking.
And, the "classifieds" for the profession are pretty much found nationally in the APA
Monitor, and locally on the websites/newsletters of state associations. APA has actually started a new Monster-style career website, called, appropriately enough psycCAREERS (
http://psyccareers.apa.org/).
There also is a chance, depending upon the size of the institution, that your internship will recruit you for a staff position upon completion. (The federal Bureau of Prisons is well known for doing this!)
Good luck.