Treatises are comprehensive publications on specific areas of tax law. These can be a good starting point for research, but they go into much more depth than the handbooks and guides. Westlaw and Lexis are a great source of tax treatises as well.
Bloomberg Law contains similar content to Westlaw Edge and Lexis Advance, including case law and analytical material. It also contains PACER dockets.
This subscription is available by login and password and limited to College of Law students and Faculty. To obtain login credentials, go to https://profile.bna.com/bloomberglaw-activate/ Limited access is also available on-campus.