Analog Industries has announced the Audio Damage Rough Rider, a plug-in compressor that is going to be a freebie. Details to come.

Waves has introduced the Jack Joseph Puig Collection, a collection of audio plug-ins based on some of the most sought-after vintage pieces of gear in audio history.
“As time goes by, there are fewer and fewer examples of these heirloom processors for artists, engineers or producers to have access to,” stated Jack Joseph Puig. “Not every [...]

KeyToSound Audio Technology has announced the release of public beta versions of its new audio production suite, the Production Pack, for users on the Windows and Mac operating platforms. The operating version is 1.0r2.
The Production Pack is a collection of four studio-quality audio mastering tools for use in Digital Audio Workstations and host programs. The [...]

elysia’s mpressor, which gets our vote for the sexiest compressor in the world, will be available as of September 2007.
With the mpressor, elysia introduces a new tool for creative dynamics processing. On top of the tried and tested standard features, this creative compressor provides several special functions that produce fat and freaky sounds by [...]

db audioware has released two new dynamics processing plug-ins - Sidechain Compressor and Sidechain Gate.
Descriptions:
Created to satisfy a long-standing demand for side-chain capability missing in many audio software packages, both plug-ins feature db audioware’s Universal Sidechains. This technology gives the plug-ins true multi track side-chaining operation in most audio programs running on Mac OS X [...]

Sonalksis have announced their TBK3 Über Compressor for PC and Mac which is designed to take analog compression to the extreme.
Features:

Extreme analog-modelled compression algorithm
Optional ‘true analog noise’ colouration
Four selectable fully adaptive attack/release modes
Modifiable side-chain filter character
64bit floating point precision internal processing throughout
Efficient processing, with specific optimisations for native processors
Zero latency throughput - absolutely no internal [...]

Crysonic has announced the release of SPECTRA C1, a Pro Audio grade wideband Compressor suitable for voice, instruments, track compression and subtle soft-knee mastering compression and expansion.
We haven’t used this, but the interface is, how do they say, “the sexy”.
Spectra C1 utilizes Crysonics’ physics based audio processing engine, allowing the characteristics of the final audio [...]

Blue Cat Audio has released a new version (1.4) of Blue Cat’s Dynamics all-in-one dynamics processing DirectX and VST plugin for Windows, introducing a new user interface design and many performance and ergonomics improvements.
This plugin can act as a compressor, limiter, expander, gate or distortion unit, making it one of the most complete dynamics processor [...]

With the mpressor, elysia introduces a new tool for creative dynamics processing. The mpressor provides several special functions that create fat and freaky sounds by employing a punchy control behavior, colorations full of character and extreme settings.
Besides classic tracking applications, its domains are groovy effect compression and creative sound design.

Looking for distorted, compressed sound? Camel Audio have announced CamelCrusher - a new free VST and Audio Unit plugin.
CamelCrusher is a versatile ‘colouring’ multi-effect that borrows some features from its big brother CamelPhat. It offers two different distortion algorithms which can be blended together to create a wide variety of tones and textures. Great for [...]