I know Logos has recently asked about suggestions for their upcoming website. I'm not sure what was suggested but I figured I'd through this one out there anyway.
My Logos library is filled with Bible studies I've picked up from David Jeremiah, MacArthur, etc. It made me think that it would be pretty cool to have a forum like section of the website, perhaps integrating features like the reading lists, that would enable the formation of study groups that would go through these guides. Perhaps there could be a Logos note file that would be "subscribed" to so that it would integrate with the Logos software.