Firefox 2.0 rocks. Download and install takes only a few minutes on a reasonable internet line. Safer than IE7, and significantly improved from FF 1.5.
When done installing, it leaves a page with link to recommended plug-ins.
Get Cooliris, takes a few seconds, of course free.
Now when you go to any web page with links on it, such as the top level of this forum, you can just hover the cursor over the end of each link, this opens a "virtual window" with the content of that link, such as a complete thread. You can scroll inside the thread, if it's FYI only you just hover away from the virtual window and it disappears, and you can move on.
Effortless, and works for other things too, including for links to PDF documents, etc.
Pretty good time saver, IMHO.