SIGs, cross-referenced by category

- indicates a SIG that accepts international members

Bitcoin SIG
Bitcoin is the world's first global, distributed, decentralized digital currency. It is also the first public distributed database that has innumerable non-currency uses.This SIG is used for discussing developments in the Bitcoin protocol and in the ecosystem being built around it. The Bitcoin protocol uses public-key cryptography to secure one's ownership of bitcoins and allow them to be transferred instantly and securely between any two people in the world without the need for an intermediary such as a bank. Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever. There is no financial institution, government, or company operating Bitcoin. There is no single Internet server that could be shut down in order to turn off Bitcoin. It exists as an application running on your computer that communicates with other Bitcoin users over the Internet. It is a peer-to-peer network, and this design makes it effectively indestructible as long as the Internet continues to function.

HackerNest-M: Tech Nerds Unite!
HackerNest is a nonprofit organization and movement that builds local tech communities around the world. We believe they are the cornerstones of economic development: we want more people to get into tech so they can afford to live healthier and happier. Our down-to-earth Tech Socials and epic, socially beneficial hackathons encourage camaraderie, collaboration, innovation, mentorship, knowledge-sharing, and so much more. We are also developing HackerNest Unite, a unified directory platform and community portal that'll help people navigate an ecosystem's vast resources. We aspire to have agenda-free, laid-back Tech Socials at major Mensa annual and regional gatherings internationally. You'll find friends, co-founders, funders, developers, entrepreneurs, all looking to talk tech.

WebHEADS
Involved in creating websites? Interested in sharing your ideas? Want to get your local group, SIG, or RG on the Web? WebHeads is for you!