[twitter-dev] Getting user-information from multiple users in a single request?

I have stored the login information from twitter users (e.g. access-
tokens) in my database.
I now want to get the retweet-count of all these users in a single
request.

Otherwise I have to send 1000 requests if I have 1000 users in my
database (which would lead to blacklisting I guess...).

Is there a comon way to get information from multiple users without
sending request for each user?

BTW: I'm using Google App Engine and JTwitter

Thanks so far

--
Twitter developer documentation and resources: https://dev.twitter.com/doc
API updates via Twitter: https://twitter.com/twitterapi
Issues/Enhancements Tracker: https://code.google.com/p/twitter-api/issues/list
Change your membership to this group: https://groups.google.com/forum/#!forum/twitter-development-talk