Satori Software
Satori Software offers simply powerful address management solutions that make your mail-based communications more effective. Includes address verification & correction, postal mailsorts & reports.
http://www.satorisoftware.co.uk

Uniserv GmbH
Data quality for direct, one-to-one and micro- and geomarketing as well as for compliance, CRM, data warehousing and eCommerce from Uniserv Data Quality Solutions
http://www.uniserv.com/

Global Source Book for Address Data Management
The Global Source-Book for Address Data Management by Graham Rhind
http://www.grcdi.nl/book2.htm

Meta IP Address Management
MetaInfo provides integrated DNS and DHCP solutions with the security of SAFE DHCP Quarantine that isolates unknown or unsafe network clients. Deploy our software solutions on your choice of platforms, including our hardened Linux-based 1-U rack-mountable MetaInfo Appliance.
http://www.metainfo.com/

IP-Address Management on LANs
Byte Magazine article covering issues related to IP address management
http://www.byte.com/art/9602/sec16/art4.htm

Olvey Software Solutions
Custom Software, Web Development, Web Hosting, and Consultation by Olvey Software Solutions.
http://www.olvey.com/

PragmaDigm Practical Software Solutions
PragmaDigm provides low cost and free software for use by the average computer user rather than technical experts.
http://www.pragmadigm.com/

CC Get MAC Address Software
CC Get MAC Address can be used to get/find/lookup MAC address and Wake On LAN. It is a handy tool for finding MAC address and computer name from IP address.
http://www.youngzsoft.net/cc-get-mac-address.htm

Web Address Easy Book
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http://www.peterhe.com/

Email Address Encryptor
The Email Address Encryptor (EAE) can prevent the spammer software from extracting your email address on your webpage for spamming purpose.
http://www.language-museum.com/eae/