GET requests to the REST API (not the streaming API or search API; they fall under different limits) count against the hourly rate limit. If you're making the request as an authenticated user, it count's against the user's rate limit. Otherwise, it counts against the IP address's (your website's IP address's) hourly rate limit.
POST requests, such as posting updates, don't count against the rate limit. All methods that require POST requests have other limits, which usually aren't public to prevent spam - see http://help.twitter.com/forums/10711/entries/15364 for details on that. So no, posting an update on behalf of a user won't count against the hourly rate limit. -- Chris Thomson On 2010-02-15, at 7:20 PM, Paul wrote: > Sorry; I did look at the FAQ and search the archive, but still the > answer wasn't clear to me.... > > So far I have an ordinary authorized Twitter web application using > OAuth, not whitelisted or anything. From what I understand in the > FAQ, that limits API requests from my website to 350/hr. > > People are meant to post tweets from my website. Does this mean that > the total of all tweets through my website are limited to 350/hour? > If users have to authenticate each tweet (which currently they do > because I don't store the tokens), does this mean the the whole site > is limited to a max of 175 tweets per hour total for all users? > > Sorry if it's an uninformed question. I did research it, & I've put > in a lot of work to get the site to work; now I'm trying to figure out > the policy issues.... >