Described as the Craig's List for science.

A nonprofit DNA and genealogy research website. You have to upload your DNA sequencing report to be allowed to search the database. Requires registration.

OpenPCR is a fully functional yet affordable ($599us) PCR (polymerase chain reaction) device, used for replicating DNA for the purposes of sequencing or barcoding (species determination). The whole kit - from the software to the hardware itself - is open source, so you can download the code, CAD, and Eagle files and build your own if you don't want to buy a kit.

An open source software project for converting sequenced DNA into music. Well beyond simply assigning notes to nucleotides, whose pieces can be played simply by interpreting the electrochemical properties of a DNA sequence in different ways. The site allows you to upload your own pieces as well as listen to those of others (oh, and download the software).

Online store for genetic research equipment, DIY kits.