David's Tip of the Day: Last of My Favorite Jam Tracks - Steve Baker Playalongs
Though Steve includes standard blues grooves in his jam tracks, where his series really excels is in their inclusion of songs that are bluesy in nature, but have elements of other musical styles. This also includes challenging keys, grooves and chord progressions. If you would like to add more diversity to your playing, or would like to start the process of learning how to deal with non-standard blues songs, this is a great series. More can be learned about the series here http://www.stevebaker.de/books_en_46.html