Dragonartz created a nice set of 8 free vector web stickers.
The set comes with 1 main EPS file and PNG files of every sticker.

There is also another set of vector stickers by Dragonartz which covers the different colours of the first circle sticker that can be found here.
Requirements: Macromedia Freehand (for EPS files)
Crystal Clear is a high quality & free icon set.
This icon set includes nearly every icon an application may need as it contains 1300+ icons.

Set comes with sizes: 16*16, 22*22, 24*24, 32*32, 48*48, 64*64 and 128*128 in PNG format.
JW FLV Media Player is a complete solution for adding video and audio to your website.
Some features:
- supports playback of any format the Adobe Flash Player can handle (FLV, but also MP3, H264, SWF, JPG, PNG and GIF).
- supports RTMP and HTTP (Lighttpd) streaming, RSS, XSPF and ASX playlists.
- has a JavaScript API.
- accessibility features.

This FLV player has so many other features like Youtube support or Google Analytics support for tracking the statistics.
JW FLV Media Player also provides an online setup wizard which can be used to create a ready-to-use configuration file.
The application is free for personal use and licences needed for commercial uses.
Requirements: No Requirements
Compatibility: All Major Browsers
Vaga is an icon set containing 60 quality, semi-transparent PNG icons.
Icons in the set are very suitable to be used within web applications as it includes user icons, shopping icons, add / remove icons and more.

Fell free to use the icons in commercial projects and make sure you check the license agreement before use.
Rabid Ratings is an excellent Mootools based star rating solution which comes with hearts instead of stars by default.
Installing Rabid Ratings is very easy by simply telling the code the database username, password, host address and including a php tag in where we want the ratable item. Rating data is shown in decimals & in heart images Also, the number of votes are displayed too.

Most AJAX ratings widgets use star and half-star images with mouse over events on each star. Rabid Ratings uses a reverse alpha-transparent PNG as a background image to achieve infinitely complex precision (ie, 1.23 stars) and robust visual effects with a very low overhead.
Requirements: PHP 4+, Mootools 1.2
Examples of how to make CSS gradient text effects are published in 2 different & beautiful web design blogs: WebDesignerWall and CSS Globe.
Both techniques are using a similar method which is adding a small PNG gradient file over the text with extra tricks. Both methods are compatible with all the major browsers. Have a look at how nice they are:
Css Globe solution:

http://cssglobe.com/lab/textgradient/
WebDesignerWall solution:

http://www.webdesignerwall.com/tutorials/css-gradient-text-effect/
Sample codes for these nice effects can be downloaded from each website.
Requirements: No Requirements
Compatibility: All Major Browsers