Pets

For pet owners, caretakers, breeders, veterinarians, and trainers.

Railways

For those interested in railways across the globe, of all gauges and ages.

Astronomy

For astronomers and astrophysicists.

Telecommunications

For experts in the broad area of telecommunications, all levels of ISO/OSI standard, wired/optical communications, wireless communication, cellular systems and any kind of communication related technologies.

Information Retrieval and Search Engines

For researchers and practitioners who specialize in building systems that help people organize data and extract information from it.

Repurpose Hacking

For those who test the limits of hardware, who modify electronic devices or combine together separate components to create new inventions, and those who like to void warranties; for those who like to make gadgets do things they were never intended to ...