Another excerpt from Peter Suber's superb and indispensable Open Access News:
http://www.earlham.edu/~peters/fos/2005_05_15_fosblogarchive.html#a111633843462112772
Science Commons supports self-archiving
Science Commons http://science.creativecommons.org/
has launched a page on author self-archiving.
http://science.creativecommons.org/weblog/a-u-t-h-o-r-s-e-l-f-a-r-c-h-i-v-i-n-g
Excerpt: 'We're focused a lot on open access to the
scientific literature. And since we're copyright folks
at Creative Commons, a lot of our work looks at standard
licensing and approaches dealing with copyright. But
we've pulled together a series of links on self-archiving,
http://science.creativecommons.org/resources/selfarchive
and I strongly encourage everyone to take a look. This is a small
subset of available information but it's a good place to start
exploring. In short...if you publish papers and have the right to
make an archive copy, you should be using that right! It's easy and
quick to self-archive using these resources. And as the research we
link makes extremely clear, getting your work online dramatically
increases the impact of your work.'