Links
Database software
MySQL: open-source, efficient database server, ideally suited to web applications
Microsoft Access: well-worth considering for those not involved in the Human Genome Project
Microsoft SQL Server: an industry standard, also available as a free download for less demanding situations.
Oracle Servers: like SQL Server, an industry standard and available in cut-down form as a free download.
Handheld computers
Juniper Systems produce the Allegro, an extremely good field computer
Itronix produce a range of robust handheld computer, including the Husky models
Automated weather systems
Campbell Scientific produce some of the best met. systems and dataloggers
Skye Instruments produce a popular range of sensors and weather stations
High-spec sensors and weather stations
Data loggers and sensors