XLink Filter Project
An open source (Mozilla license) XLink parser filter layer that can rest between a SAX-compliant parser and Java applications which use the SAX API to retrieve information from XML documents.
http://www.simonstl.com/projects/xlinkfilter/

Oberlin Filter Company
Manufactures and distributes range of filtration products and equipment. Includes filter cloths, filter bags and cartridges, air filter units, and selection of new and used filter systems. Offers free analysis of wastewater samples.
http://www.oberlinfilter.com/

Uni filter
Unifilter Australia manufactures Australias largest range of oiled foam air filters for motorcycles, cars, 4x4s, commercial vehicles motor sport and commercial and industrial applications
http://www.uniflow.com.au/

Multi Layer Routing
Integration of Layer 2 and Layer 3.
http://www.watersprings.org/links/mlr/

DVP Technologies
Eye Fidelity Tools include the moire filter, graininess filter and JPEG filter.
http://www.dvp.co.il/

MixedCC - Mixed Compiler Compiler
PanEris - a way of life
http://spindent.paneris.net

Lianda Filter Equipment Co.,Ltd.
Anping Lianda Filter Equipment Co.,Ltd.is an exporter and manufacturer of stainless steel melting filter element, pleated and pipe type,disc filters and filtration wire cloth: over 80 percent of filter elements for export
http://www.lianda-filter.com/

AACplayer
The world's largest development and download repository of Open Source code and applications
http://sourceforge.net/projects/aacplayer/

Filter Specialists, Inc
FSI is the world's most innovative manufacturer of liquid filtration products. We've patented dozens of designs for filter vessels, filter bags and filter cartridges, providing our customers with improved efficiency and significant cost savings.
http://www.fsifilters.com/

MuRa's Filter Meister
Professional filters for Adobe Photoshop and plugin compatible programs such as Paint Shop Pro and available only for the Windows. They are made with Filter Formula. This filter collection is freeware.
http://www.geocities.com/murakuma/mmplugins.html