Location
Looking for more information on Watir? Watir's classes and methods are all documented in Watir's RDoc pages.
Using RDoc
On the top of the webpage for Watir's RDoc page, there are 3 lists for the files that are a part of Watir (on the left), the Classes that are a part of Watir (middle) and the methods that are a part of Watir (right).
Most of Watir's methods are in the Watir::IE class or any of the other supported Elements (like Watir::Link).
Example
Say you wanted to learn more about how Watir handles tables. Clicking on the Watir::Table class in the top middle column brings you to the RDoc page for this class. You will see the several methods available for tables including the helpful column_count, column_values, row_count, row_values and each methods. Scrolling down to the each method you will see:
Following the "Table Row" link will show you more information about the Table Row objects that Watir's Table class each itterator returns. Incidentally, if you looked up the each method for Table Row class, you would see that this yields a collection of Cell objects.
