There are numerous sites and tools on the Internet to help you regarding home buying, insurance, financing, realtors, etc. Here you will find relative information to home buying and financing. I am not able to list them all for reasons of ethics and implying a specific company or agency. However, this should help give you a good start.

Realtor.com - Real estate listings, realtor information, and much more...

Home Owners Information Center - Information on home value, remodeling, finding a contractor, homeowner insurance, and more.

Yahoo! Real Estate - The world famous "Yahoo" even has a wealth of information for home buyers.