To easily identify higher quality, longer lasting CFLs, just look for the ENERGY STAR label!
Here are some helpful industry links to help you save on your energy costs.
http://www.energystar.gov
http://www.lamprecycle.org
http://www6.homedepot.com/
http://www.earth911.org
http://www.epa.gov
http://www.tcpi.com/recycle.aspx