To answer your question:
We run our own search engine with our own software including web crawlers (spiders), servers and lots of hard work, kind of like "Google for Bitcoin". Though we don't use any technology from Google other than tangentially searching for or investigating new merchant leads by Googling them manually, and usually it's to confirm their acceptance of Bitcoin.We have a blog where you can read about our technical milestones, challenges and musings:
https://spendabit.co/blog/https://spendabit.co/blog/full-speed-aheadYou can
join our mailing list too, right at the bottom of each blog post:
https://spendabit.co/blog/search-back-up-and-new-backendAny chance of you setting up something similar for doge and ether as well? Would be interesting to do a comparison to see if they are really developing a market of whether it's just hype