References for 1 Enoch
The Old Testament Pseudepigrapha, Vol. 1 by James H. Charlesworth, the Introduction is an excellent resource for background and this contains the newer translation of the text.
en.wikipedia.org/wiki/book_of_enoch – Wikipedia article, better than many, contains lots of information and resources but watch the details for accuracy
www.heaven.net.nz/writings/enoch.htm – HeavenNet article, Not a bad overview, gives some good general summaries of the 5 books in 1 Enoch
wesley.nnu.edu/biblical_studies/noncanon/ot/pseudo/enoch – complete text of the Book of Enoch from The Apocrypha and Pseudepigrapha of the Old Testament by R. H. Charles