Also, there are other useful sites (resources) where you can find more information, tips, tutorials, and so on. Some of them are discussed in this section.

The Learn from Saki website contains many tutorials and code samples, and also offers commercial plug-ins for the framework's versions 4 and 5 (the prices are moderated). Registration is required, and some tutorials require membership in order for you to access them.

Learn from Saki at http://extjs.eu

Loiane Groner is a Brazilian author who is an expert in Ext JS and other technologies. She also has written many books about Ext JS. The following screenshot shows her website where she has discussed Ext JS:

Loiane Groner's page at http://loianegroner.com/

Sencha Dev Tricks is another JavaScript experts' blog site. It has many good tutorials and tips.

The Sencha Dev Tricks page at http://www.ladysign-apps.com/developer/

Sencha has the following vimeo channel, with many videos about their products. There are also tutorials, videos...