-- The ability to manage scores of open file windows at once, and search and replace large blocks of text across them.

-- The ability to proof to the Web browser of your choice right in the program window. HomeSite does this in two ways. For quick spot-checks, it offers a browser window that works like a tab. So you work in the Edit window and then click the Browse tab to render the selected Edit window. It's easy to toggle back and forth, and best of all, you're not spawning new windows at all when you do.

The second way is to spawn external browser windows from a toolbar button. You can configure as many specific browsers as you want and choose the one you want to view your Edit window's contents with from a toolbar-button drop-down. Proofing your HTML work is a HomeSite strength.

-- Automatic, Word-like spell checking within the Edit window that can optionally ignore HTML.

There are a lot of other great features in HomeSite, but those are the ones that matter most to me.