Statistical analysis is a relatively small step in the reseach process, yet it is one in which many researchers spend significant amounts of time and energy. Hopefully, these electronic tools help you spend less time on the number crunching and more on the design.
Statistical Tools

http://ericae.net/testcol.htm
* Search for an instrument to measure a particular phenomenon. Developing and testing your own can require a good deal of statistical work and can distract you from your research question(s).

http://www.statlets.com/free/samsize1.htm
Sample size calculation tool