With Snort2Pf, you can turn your local Snort
installation easily into an "intrusion detection
and prevention system", rather than simply using
it for post-mortem analysis. Such a system also
blocks the recognized violations.
A simple chess clock to track time in real-life games.
Standards-compliant Java persistence via JDO/JPA/REST and RDBMS/db4o/Excel/LDAP.