Started in 2005 by John Resig, the library gets to a 1.8 version (still in beta while I write) with many new features. Today jQuery is used by major companies in their web sites, and many web developers include the library in their projects.
Considering the past history of jQuery, its development and growth, I still consider it some sort of miracle.
The library is free and it will stay that way. It simplifies our work and make things easier for every developer.
The number of features over the past 7 or so years has incredibly increased, while a whole new world of aficionados has grown steadily during the last 2/3 years.
The strenght of jQuery lays in its simplicity (and we know that). In my experience, once you understand the basic logic behind it, everything falls in place and using the library becomes easy and straightforward.
I said I consider jQuery a miracle. Why?
From an obscure basement to the web glory... isn't it a miracle?
If you want to know what I wrote about jQuery in the past, please see here.