A few months back I noticed we actually have regular WordPress Meetups in Ljubljana, our base town. We attended one in April, where David talked about theming and Emanuel about bringing WordPress into the Public Sector. On the second one, in June, we were active participants: Janez and myself delivered a talk titled Lessons learned running 25k WordPress blogs describing how we scaled Easy Blog Networks to 25k blogs running on several hundred servers.
Both events also had a Lightning Talks section, which is what I normally enjoy the most. So many great ideas packed into such a short timeframe. Looking forward to the next meetup that should happen sometime in Autumn!