As announced, I held a short talk on switching from MySQL community edition (especially 5.1) to MariaDB (currently 5.2.6) at this years LinuxTag in Berlin.
Here are the (German) slides for reference:
(In case you cannot see the embedded presentation, you can also click here)
Please note: There are a lot of good English slides around. If you want give a talk on MariaDB, the “Beginner’s Guide” might be a good start: