There are different tools to help you locate information in chemistry.
1. Encyclopedia: AccessScience
2. Journal article databases with structure and reaction search tools:
CAS Scifinder-n (You will get a link to register for this after the lecture. You can also email me for the registration link anytime.)
3. Journal article citation databases:
Web of Science
There are lots of classroom materials of chemistry lectures, problem sets and exams on the web:
Khan Academy has many introductory chemistry lecture videos. Note that problem set solutions may be locked.
CrashCourse has videos on Chemistry course topics.
MIT OpenCourseWare has lectures, problem sets and exams online.
UCI Open has lectures, problems and solutions in individual lectures.
Periodic Table of Videos covers many chemical topics.
Alternative Periodic Tables you may not have seen.
Periodic Table parodies on a variety of themes.