Singlefin
iPrism - Monitor and Report on Internet use. iPrism is the #1 Web filtering appliance. iPrism utilizes iGuard the top url filtering database for internet content filtering.
http://www.singlefin.net

CyberGuard
ICSA and NSA certified Unixware and NT-based filtering firewall. Offers static packet filtering, dynamic packet filtering (stateful inspection) and proxy gateway (smart proxies).
http://www.cyberguard.com/

NIDCD Health Information: Hearing Aids
Describes what hearing aids are and how they work, how to get a diagnosis of hearing loss, and the different types of hearing aids. From the US National Institute on Deafness and Other Communication Disorders.
http://www.nidcd.nih.gov/health/hearing/hearingaid.asp

Tynor Orthotics Ltd.
Tynor is amongst India's largest orthotic aids and rehabilitation equipment manufacturer and exports orthopaedic soft goods and rehabilitation aids.
http://www.tynorindia.com

AIDS and Anthropology Research Group
A network of scholars interested in anthropological research on HIV infection and AIDS. The mission of group is to support anthropological research in the fight against HIV and AIDS.
http://puffin.creighton.edu/aarg/

Visual Dorp Filter
DORP - Home of Object Oriented Filtering for Visual FoxPro and SQL developers.DORP-VDF objects are set of date-centric filtering objects and provided to help speed the process of filtering application development.VCX library for VFP8,VFP9 development views and reports.Advice, tips, sample code, downloads.
http://www.dorp-vdf.com

Safer Path Internet
Dialup access with web filtering or add filtering to your existing connection.
http://www.saferpath.com/

SpamEater Pro
Email filtering system that can automatically receive periodic updates to its filtering rules.
http://www.hms.com/spameater.asp

NetMail
Email client. Full-featured e-mail client designed for e-business
http://www.softwarea.com/netmail.htm

HWG Filtering FAQ (Windows, Mac, Unix)
The HTML Writers' Guild's FAQ sheet about mail filtering systems (multiple platforms)
http://www.hwg.org/resources/faqs/filterFAQ.html