if you're looking for places to play and meet some players to buddy up with, newbie mixes are a great pickup game group for inexperienced players to learn the game and meet some friendly faces around the same experience level. There has also recently been developments in the general PUG scene, as there's now a central hub for all things TF2 PUG related, pug.tf.
Edit: Those resources are mainly used by the NA community though, perhaps someone from the SEA community can hop in this thread and throw some pug group links and resources for you