[conflagration]

Which stream are you using exactly. Are you applying any filters? Afaik the complete firehose has restricted access, or did that change?

Edit: very cool visualization btw. What are you using exactly on the backend for stream processing?

[sgruhier]

I use the public stream with a filter on location (:locations => '-180,-90,180,90') Twitter doesn't seem to have limitation for that.

The backend is written in Ruby. The daemon to index tweets use the great Intridea gem https://github.com/intridea/tweetstream.

The page http://onemilliontweetmap.com/ is simple Sinatra application, and I use REDIS pub/sub to push tweets to the browser.