Great post – immigrants are often overlooked in this area.
Tax regulations is one of the most confused and complex topic when you are in US on non-immigrant visa (H1/F1/L1, etc.) or you are permanent resident (Greencard holder) or US Citizen.
I found this nice information in form of slides on slideshare.net by Sanket Shah of NSGlobal. It is really nice information and worth going through once to brush up your knowledge on tax basics and implications. It explains several scenarios with simple examples that’s easy to understand. It has touched almost every basic points including Gift / Estate tax, FBAR / OVDI, FACTA(8938), etc.
Also check this slideshow: Do you Know
Hope this helps.