Home: http://nlp.stanford.edu/software/lex-parser.shtml
FAQ: http://nlp.stanford.edu/software/parser-faq.shtml
Tag and Bracket: http://web.mit.edu/6.863/www/PennTreebankTags.html
More details: https://catalog.ldc.upenn.edu/docs/LDC99T42/
Dependencies: http://universaldependencies.github.io/docs/u/dep/index.html
or http://universaldependencies.github.io/docs/en/dep/index.html (for subtypes of nmod etc.)
タグ、係り受け関係の一覧が書いてあるページはメモっておかないとすぐ忘れるなと思ったので……。