The Rackspace blog has some tips on how you can improve the loading time of your web page by reducing clutter from the site: Host close to your market.
Test your web pages under different screen resolutions online for free with viewlike.us - you can check layout under most common display resolution and even for the iPhone and Wii browser.
You can now choose to customize the appearance of your Google Adsense ad unit by choosing between “Arial”, “Verdana” or “Times” font-faces on all English (Latin-based) web pages.
You’ve probably heard of WYSIWYG (What you see is what you get), used to describe software in which content displayed during editing appears very similar to the final output.
While designing a for the web, it is always important to keep in mind how background/foreground colors interact with each other.
Yahoo recently introduced a web based tool called Smushit to help you optimize the size of web images without affecting visual quality.
Yahoo! Stencil Kit is a set of graphics to help you create mockup designs real quickly – you can use these stencils for designing web pages for the desktop or mobile phones.