I have had a number of discussions concerning the creation/evolution controversy — often on blogs. However, most blogs do not offer the bandwidth or the multi-threading necessary for detailed scientific discussions. Due to these limitations, I often refer people to the Usenet newsgroup Talk.Origins *.
"Talk.Origins * is a Usenet newsgroup devoted to the discussion and debate of biological and physical origins. Most discussions in the newsgroup center on the creation/evolution controversy, but other topics of discussion include the origin of life, geology, biology, catastrophism, cosmology and theology."
The Talk.Origins Archives offers a variety of articles and essays providing mainstream scientific answers to many frequently asked questions (FAQ). The Talk.Origins Archives have won numerous awards and mentions.
( * Note: If you do not have a newsgroup reader, you can access Talk.Origins through Google Groups. Or, many email programs can be configured for newsgroup.)