Salary.com - www.salary.com
Site features quick calculator of salary comparisons either by zip code or major metropolitan area. Site also contains other useful information regarding compensation.

HomeFair.com - www.homefair.com
Site features useful information on cost-of-living differences, choosing a new city and estimating relocation costs. It also has a salary calculator to develop salary comparisons for hundreds of cities.  Site also provides resources to find a new home and/or homebuilder, a condominium or an apartment. 

The Wall Street Journal Career Center - www.careers.wsj.com
Site includes job loss, interviewing skills and job search strategies. The articles and columns also offer information on salaries by profession and region, workplace trends and starting your own business.

Postal Service - https://moversguide.usps.com
Site is run by the U.S. Postal Service and has features such as filling out a change of address card online.

Moving.com - www.moving.com
You can accomplish most of your moving tasks from this site.  The cost-of-living calculator generates detailed reports based on 25 quality-of-life issues.  It covers just about everything you can think of regarding moving, from moving your kids to finding new homeowners' insurance.

Chambers of Commerce - clickcity.com
Compare cities on a wide range of criteria and link to Chamber of Commerce sites for more than 200,000 cities worldwide.

The Moving Mall - www.movingmall.com
This database allows you to search over 114,000 nationwide moving related companies including movers, truck rentals, employment agencies, storage services. There are links to Chambers of Commerce and more. Online forums feature Q&A sessions about relocating and rental opportunities.