The URLs of many web sites are long and hard to remember. It's also painful to type them in full in the omnibox. You can create a bookmark for it. However, the number of bookmarks you can put on the bookmark toolbar is quite limited. A good approach to this problem is to create a short alias mapped to the original URL. After the alias is defined, you can simply type the alias from the omni box to reach the destination web site quickly. Here is a screenshot of the alias definition dialog,
What makes the alias feature in Slimjet more powerful is that you can even define aliases to open a QuickFill form file, or set it to open all bookmarks under a bookmark folder like a site group.
For example, you can type "fy" in the omnibox and the site http://finance.yahoo.com will show up as the first match. All you have to do is to press enter to go to the Yahoo Finance website.