Today, Desiring God gave me permission to include their great resource of commentary recommendations on BestCommentaries.com. This is great because it will help populate the initial dataset of recommendations.
On a side note, I really appreciate the openness of John Piper's ministry. At the bottom of every page, they have the following notice:
Permissions: You are permitted and encouraged to reproduce and distribute this material in any format provided that you do not alter the wording in any way and do not charge a fee beyond the cost of reproduction. For web posting, a link to this document on our website is preferred. Any exceptions to the above must be approved by Desiring God.
I emailed asking for permission to "atler the wording" by changing the list into ratings, and they quickly responded saying that I could do so. The body of Christ is wonderful.