Liferay is an enterprise portal. It handles users and portlet drawing, has a full administrative interface, supports all the major databases and the main J2EE application servers, and has single sign-on capabilities and multiple language support. It uses Apache Lucene for document searching. A number of portlets are included, including a guestbook, a calendar, a mapping utility which uses Expedia, news, polls, a document library, and live stock information.
Haystack is a powerful tool designed to enable each and every individual manage all of her information in the way that makes the most sense. By removing the arbitrary barriers created by applications that only handle certain information "types", and recording only a fixed set of relationships defined by the developer, users can define whichever arrangements of, connections between, and views of information they find most effective. Such personalization of information management will dramatically improve your ability to find what you need when you need it.
ChkDB is rule-based data checking software for Oracle, plus files that define rule-sets and data domains (tables/views to be checked). The software is a PL/SQL package and some SQL scripts. There is currently no GUI front-end. For oil and gas data, there are domains and rulesets for well-header, drill-stem-test, and seismic-inventory data.
Simple Timetracker is an application useful for keeping a record of time spent on projects and activities therein. You use mouse-drag gestures to 'paint' time spent on a task on a continuous timeline. It takes care to make sure any particular stretch of time is attributed to at most one task. It records data, via JDBC, in a database. By default, it uses HSQLDB, but (for example) a PostgreSQL database on a central server may be used.
SearchLog can be used as a searchable weblog. It is designed with usability in mind, and uses highlighting and easy linking between entries to give the user maximum power for minimum effort. It is much more than a weblog, however. It was designed as a knowledge management tool. It serves as a personal information management tool and portal. It is powerful and versatile enough to do several jobs well.