- jQuery is a lightweight, extensible and modern JavaScript library.
- It is widely used, well tested and robust
- It has a strong community behind it with smart developers
- It is quick to learn and write code with, flexible and extensible
- Has a plugin for almost anything you can imagine
- Has a small footprint (29k), one of the most lightweight full comprehensive libraries out there
- Has very good documentation and API
- Has full CSS2 and most CSS3 selectors support
- Is fast, very fast!
- I like the name, and google likes it too
