Here are some links to sites that contain helpful information about buying or selling a home. I have also included sites that provide information about Philadelphia and activities I'm directly involved in.
I hope that you enjoy them and find them useful.
Loan Modification Frequently Asked Questions - http://portal.hud.gov/hudportal/HUD?src=/program_offices/housing/sfh/nsc/faqlm
Making Home Affordable.gov - http://www.makinghomeaffordable.gov/for-partners/understanding-guidelines/Pages/default.aspx