Impact Factors - (Mar/21/2011 )

Whats this 'Impact Factor'. I googled it but I'm not satisfied with the results. Which are the journals having a high impact factor?

InduS on Tue Mar 22 04:05:14 2011 said:

The impact factor tells you how "popular" (or respected) a certain journal is.
(and thus gets more credits, citations)
Check this topic for more info:
http://www.protocol-online.org/forums/topic/6509-current-impact-factor-list/

and check:

http://en.wikipedia.org/wiki/Impact_factor

and http://www.sciencegateway.org/rank/index.html
or http://www2.lib.udel.edu/colldev/impact.htm to get to know the impact factor for journals