Blogs primarily focus on one person's contributions and don't allow for much discussion to occur. For this reason, I started a horticulture discussion group on Yahoo. The Yahoo discussion group called Desert Horticulture allows you to join the group and post questions or contribute to the answers to questions that are posted.
Please come and join us in these horticultural discussions. If you can't find it, send me an e-mail and I will help connect you.