PatternWall is a fresh website which features a huge collection of free seamless patterns to beautify your designs & website backgrounds.
Just like the name, it is similar to a wall where new patterns load automatically once you scroll down, no paging is required.
Patterns are free to use both in personal & commercial projects.

Noqta is presenting 30+ quality patterns that are free to download.
Most of them are pixel-patterns. They come with a Creative Commons license which means they can be used both in personal & commercial projects.
To download them, simply save the background-image of every pattern displayed in order to get the repeating-ready versions of the images.

Using textures mostly helps creating surprising designs (both in good & bad ways). But it is certain that, quality textures, when used wisely, will end up nicely.
ZenTextures is an online gallery presenting beautiful free textures.

Textures are very well-categorized like: paper, grunge, wood, stone & more.
Currently, there are 400+ textures shared which are free to use for both personal & commercial projects.
Color Pallete Generator is a free web-based application that is creates the color palette of an uploaded image.
It supports .PNG, .GIF, .JPG, .JPEG images & creates 4 levels of palettes: light, medium, dark, complete.

The generator also prepares the related files for CSS & Photoshop swatches of the color palette created.
P.S. Up to 1 mb can be uploaded.
Optimizing images is a "must" when serving them over the net for faster browsing experiences, lower bandwidth & diskspace usage.
Smush-it is a free online service for compressing your images by offering different techniques than Photoshop, Fireworks, etc. & creates non-quality-loss output.

It offers several ways for easier usage:
- Web based uploader that supports unlimited file uploads & optimized images can be downloaded as a .zip file. Images can be uploaded from URLs too.
- Firefox plugin & a bookmarklet for 1-click optimizing for the images exists on that webpage.
- Wordpress plugin for automated usage for the uploaded images.
Anyone, who wants to get more bytes out of their images, should take a look at Smush-it.
Requirements: No Requirements
Flowplayer is a free Flash media player that can configured & styled to fit your needs.
It supports multiple media types: FLV, H.264 coded MP4, JPG, PNG & MP3.

Some features of Flowplayer:
- Full screen mode
- Progressive download
- Ability to play multiple files in 1 stream & ability to include images
- Streaming support: Flash Media Server, Wowza & Red5
- Quick access to specific chapters via thumbnails
- Protection against hotlinking to media files
- Embed links
This Flash media player can also be controlled with JavaScript & from other Flash movies.
Besides the free GPL license, there are several other paid licenses. So, make sure you check the licensing before using it.
P.S. This is not a very fresh resource but realized that it was missing in WRD & here it is.
Requirements: No Requirements
Everyday Icons has a playground area, which has a chic interface, presenting free patterns, icons & some PDF note designs.
Specially, patterns are high quality, can be previewed & downloaded in different colors.
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Currently, you can find 100 patterns and 6 small icon sets.
DinPattern by Evan Eckard is a website presenting quality & unique patterns created by him.
Currently there are 60+ free patterns to use.

New patterns are being added by time and before downloading them, you can easily preview how they look.