A nice article from site Jonathan Hedley, detailing how to optimize your site for speed. This is a nicely detailed how-to article, well worth a read.
Does your website load as quickly as you — and your users — would like? If not, here’s a detailed set of proven guidelines aimed at improving the speed of your site.
How-to: Optimize your site for speed - Jonathan Hedley - Live from Sydney
Website Tech Tips For Us has a really nice list of 21 lesser know but highly useful open-source applications for Windows, worth browsing for new finds.
21 Awesome (But Lesser-Known) Open-Source Applications for Windows (Tech Tips For Us)These applications range from moderately popular to downright obscure, but all of them are open-source and FREE. All of them are worth the install time if you have never tried them. As a side bonus, many of them are cross-platform as well.
From JeetBlog, a nice list of Firefox Keyboard Shortcuts which you may not have known about. Be sure to read the comments to the post for even more tips for navigating Firefox quickly and easily. Incredible Firefox Keyboard Shortcuts Which You Probably Don't Know About | Jeet Blog
Website Free Geekery has a nice list of free fonts all nicely categorized by font style. Well worth browsing for some new font finds. 101 Awesome Downloadable Fonts for Designers (Free Geekery)
For Windows XP users, a nice article from FixMyXP, detailing 156 Useful Run Commands. If you've made the leap to Vista, there's a link in the article to a similar list for Vista users.
Firefox 3's URL bar has the ability to show rich results, relevant sites that you have visited in the past. Here's how to limit the amount of results you get.
1. Enter about:config in the URL bar
2. You might get a page warning against the changing of settings. Just click "I'll be careful, I promise!" to continue
3. In the filter, type browser.urlbar.maxRichResults
4. Double click the entry and change it to whatever amount you want (I have mine set at 10)
If you keep a large amount of email in your Gmail Inbox, it can sometimes be difficult to locate all of your unread mail. Instead of scrolling to hunt for them, you can simply perform a basic search and quickly get a collection of anything that you have yet to read.
1. Go to Gmail.
2. In the Search box at the top of the page, input the following:
Several bugs and two security issues have been fixed in Thunderbird 2.0.0.14 and it is advised to update the email client as soon as possible. The security issues that have been fixed in Thunderbird 2.0.0.14 have been classified as moderate. They fix crashes with evidence of memory corruption and one JavaScript privilege escalation and arbitrary code execution.
The seven other issues that have been fixed can be found at the Rumbling Edge website. One random crash has been fixed for instance. If your check for updates does not find a new version head to the official Thunderbird website, the new version is already provided as a download on the main page there.
Whenever you install an extension, Firefox will show the above message box. Initially the Install button will be grayed out for 3 seconds, during which you have to sit there, watching the timer ticking down. Even though there are very good reasons why such a delay is put in force, still some of us have felt the need to remove that. How do you do that ?
about:config into the Firefox address bar and hit enter. security.dialog_enable_delay into the Filter text box. Double click on that preference value and change the value to 0We talked about Mozilla's Prism earlier. Prism is built on Firefox engine but has none of the Firefox bells and whistles.. There is no way you can directly change any settings. I am behind a proxy most of the time so I tried to figure out a way to setup the proxy for Prism. The method is not very intuitive but here it is.
about:config into the URL field. Give it a name like config and enable the check box Desktop to create a desktop icon. Click OK. 
Double click that shortcut to see the following window.
