Well, this is the ranking of the top ten selling study Bibles, according to the January 2009 CBA Best Sellers list. The CBA is a trade association that represents many independent and chain Christian book stores. The list helps to give a small indication as to what study Bibles are the most popular, particularly in Protestant communities. It must be pointed out that these rankings do not include Catholic Bookstores or larger secular retail chains like Borders or Barnes and Noble. Therefore, you will not see any edition of the NAB study Bible or NJB or anything Ignatius Press might produce for Bible study.
Of all the study Bibles listed on this ranking, the only one that might be of interest to Catholics would be the New Interpreters Study Bible, which is an ecumenical study Bible that includes the full NRSV translation, with Deuterocanonicals/Apocrypha. As for the rest, it is not surprising to see the new ESV and NLT Study Bibles doing quite well, since they were both heavily promoted prior to publication in late 2008. And of course, the NIV remains the most popular overall.