To see a list of the categories go under categories on the right hand side of page and pick newest. It will show the categories newest to oldest on several pages.
If you want all the categories listed at once, you can go to the categories tab and click link
View Entire List of Categories This will show all categories in grouped in the major division. One other way of getting all category titles is to go to grid and copy all cells and paste special (text) into excel and it will put each category title into a cell in excel.