The best way to get introduced to Ubiquo is to take a look at the Ubiquo Guides. These will give you an overview of everything you can do with Ubiquo, and for each Ubiquo plugin available you will find examples on to how to use the features they provide.
You also can browse through to the full API of each plugin.
Ubiquo is an open source, Ruby on Rails based framework that maximizes your productivity. Get it!