If you’re looking for some really excellent Bible Studies Series, may I suggest the following link:
JesusPlusNothing.com was designed and written by Iain Gordon and Brett Wilton.
They fellowship at a small non-denominational church called Living Waters in Tauranga, New Zealand. Yes, the home of hobbits and orcs. Lovely place! Most of the studies and sermons on this site have come from home group studies or preaching at this church. Several audio sermons and some written studies have been also been added for Fraser Gordon who, along with Iain, is on the leadership team at Living Waters.