If your textbook is a new edition, it should have a summary at the end of each chapter. While it's a great way to review and get the basics, nothing beats actually reading the whole text
(sorry, I studied 5 semesters of different branches of chemistry reading the whole text, thus my response is based on my method of studying 😛)
I'll be glad to post a site if I come across one. Oh, the textbook should have a page to weblinks of interest as well.