I recently attended Barcamp Boston 4, an “un-conference”. There is a nice mix of discussions and presentations, and covering technical topics as well as the business of technologies.
The big board of sessions
Some of the sessions I was able to attend:
- Good introductory presentation about Git by @qrush
 - QR Codes, mostly covering the ZXing project on Android
 - Discussions on selling iPhone apps, Drupal development
 - Comparing Amazon vs. Google cloud hosting services
 - A review of Tools for Ruby development 

 - Review of three frameworks: django, rails and zends and a discussion on client-side web testing
 - Discussions on freelancing, entrepreneurship, and Co-working
 - Some microcontroller sessions, mostly around Arduino development
 - Got introduced to LOLCode, there really is such a thing..
 
There was a lot of interesting sessions to take in, definatly worth a try if you haven’t been to one.
http://www.barcampboston.org/

