You should try http://IndonesianLanguage.net. It is one of the best Indonesian language learning institution in Indonesia. And more importantly, they also have Online Indonesian language course (via Skype) for those who'd prefer to have online language course.
The teachers are fully certified and highly professional.
Native: | Learning: | Interested In: Feel free to correct any of my Esperanto/Indonesian mistakes Ne hezitu korekti ĉiujn miajn Esperantajn erarojn Koreksi sesuka lo apa saja kesalahan bahasa Indonesia gue
I have found this blog which looks like haven't been updated for a while, but has very useful vocabulary, mainly focus on false friends, differences btw malay and indonesian, also some javanese, etc. Don't miss the post on vocabulary related to computers.