The Philly Tech News Job Board (via SimplyHired): $25 for 30 days (will also tweet once per week)
Display advertising for your event on my events page below the Philly Tech Events Calendar: $20 per week, $30 for two weeks (will also include your event in the Philly Tech Events Calendar, of course, and tweet event once per week)
Display banner advertising on the Philly Tech News home page: I'd be happy to discuss rates and current Google Analytics data for my site with you.
Since I am just starting to build my own advertising base, I am willing to be very flexible in
helping you meet your needs. Results are what matter. Also, I think you'll find my rates to be quite reasonable for reaching a very sophisticated audience.
Contact email@example.com for more info.