How can we improve eXtreme Thursday?

It's approximately a year since we started XTC. In that year, we've had some very good meetings, but also some that were tiny and one that was just me enjoying a drink by myself...

Some thoughts on changes that might help:

Settle on a location

Kinsale's seems appropriate based on our experiences.

Select a main topic for each meeting

I'll propose a topic for the October meeting.

Schedule more frequent meetings

Might have an interesting counter-intuitive effect.

Note who's attending

We're getting a bit of this from meetup. Can it be improved? London does this by a wiki.

I'd love to hear other ideas. What would make this group more useful to you?