Although this entire website should be a “resource” for you, here are three specific areas that might offer special benefits to you.
If you want to enhance your understanding of the martial arts I’ve provided you with a list of books you can read. Yes, if you’re seriously interested in progressing in the martial arts your intellectual growth is part of the deal.
Many dojo [jujitsu and otherwise] have cross-linked with the BJJY for easy website connections. You might want to check some of these dojo out.
Last, if you’re into kanji, here’s a page of great kanji with an emphasis on jujitsu. Thanks to Brett Denison for his great work in providing professional looking kanji.