Mold removal is a tricky situation. Depending on how bad your case is, sometimes you are better off leaving it to professionals. If it's a minor situation it is something you can possibly handle. Please look at these links for some guidelines.
http://www.epa.gov/mold/moldguide.html
http://www.dhs.wisconsin.gov/eh/mold/clean.htm
http://blackmold.awardspace.com/kill-remove-mold.html - natural ways to get rid of mold