W2kEventLogReport 

Check your servers eventlogs daily with a scheduled intranet-report without duplicates, only the eventlogs since last scheduled run, and email with number of logs found since last time. Free install working unlimited 90 days!
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Ascella Log Monitor Plus 

Allows users to monitor events recorded in the Application, Security, System logs, dispatches the notifications about events via LAN, which can be received by the Windows NT4/2000 Messenger service, and using e-mail, SMS and ICQ (via e-mail gates).
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Visendo Analyzer Professional 

Visendo Analyzer is designed to analyze almost any logfile, independently of the source data format. You can analyze webserver logfiles as well as databases, eventlogs or other text-sources and create useful graphical reports.
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Winalysis 

Archive Event Logs from multiple computers to a central database. Monitor for changes to files, the registry, users, groups, services, security policies, and more. Restore files and the registry from snapshots. User account auditing and analysis.
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Ascella Log Monitor 

Allows users to monitor events recorded in the Application, Security, System logs, dispatches the notifications about events via LAN, which can be received by the Windows NT4/2000 Messenger service, and using e-mail, SMS and ICQ (via e-mail gates)
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