CertificationZone 
Cisco Certification Study Area. Online preparation for Cisco CCNA and CCIE certification exams. Includes free monthly White Papers (authored by industry leaders), practice questions, simulated exams, and lab scenarios.
http://www.certificationzone.com/Self Test Software
Certification test prep for Microsoft, Oracle, Cisco, CompTIA, Novell, Lotus, Sun, and CIW: MCSE, MCSA, MCSD, MOS, OCP, CCNA, CCNP, A+, Network+, CNA, CNE, CLP.
http://www.selftestsoftware.com
Netdesk online MCSD training
Netdesk provides online training for the complete Microsoft Certified Solution Developer program. We also provide instructor-led training in Seattle for the MCSE and MCSD programs.
http://www.netdesk.com
LearnFish.com
Learn Microsoft Office for MOUS or ECDL online with full support. LearnFish courses are based on a unique questioning approach.
http://www.learnfish.com
eIT Games
An IT certification test assessment gaming site. Play against other contestants from across the world for prizes.
http://www.eitgames.com
Magellan.edu
Online and instructor-led certification courses available in Microsoft, Cisco, Linux, A+, Network+, Java, and Webmaster certification.
http://www.magellan.edu/
e Technologies
Developers of computer based training (cbt) programs for the I.T. industry. Specializing in the area of technical certifications such as MCSE, A+, Network+ and I-Net+.
http://www.etechzone.com
LearnKey
Online certification training, videos and cd-roms for A+ certification, MCSE, MCP, CCNA, comptia network+, Novell netware, and Office 2000.
http://www.learnkey.com/
AS400 Online
Provides web-based training and CBT products for IBM iSeries and AS/400 and Certificates.
http://www.as400online.com
MCSEOnline.net
Provides a convenient and easy way for individuals to prepare for the MCSE Exams.
http://www.mcseonline.net/
MeasureUp
Provides practice tests and online tutoring for MCSE, MCSD, A+, Cisco, CIW, CompTIA, Oracle, Novell and Sun certification.
http://www.measureup.com
IMGUniversity.com
Offers a variety of Microsoft certified and non-certified courses.
http://www.imguniversity.com
Enterprise Training Solutions
Offer certification training on courses ranging from A+, Cisco, Microsoft, Novell, Oracle.
http://www.enterprisetraining.com/
American InterContinental University Online
Online bachelor's program in Information Technology provides students with the knowledge and skills they need to succeed.
http://www.aiuonline.edu
