Gears is an open source project that enables more powerful web applications, by adding new features to web browsers. Gears modules include:
- Database Store data locally in a fully-searchable relational database
- WorkerPool Make your web applications more responsive by performing resource-intensive operations asynchronously
More details available at: http://code.google.com/apis/gears/
You will find "How do I start?" links
Please comment if you have any question or would like to share your learning.