Remember when people used to complain about information overload on the Internet? Then Twitter came along to show us what a real fire hose looks like.

If you find yourself drowning in your tweetstream’s perpetual deluge of data, there’s a new tool for Twitter users designed to help you save time while getting only the freshest, most relevant content delivered to your digital device of choice.

RiotFeed is the latest service offered by real-time web search vendor OneRiot.

It’s a pretty simple concept: Twitter users can follow up to 20 different RiotFeed accounts broken into different topic categories, including News, Technology, Sports, Business, etc.

Each of these Twitter RiotFeeds is a collection of human-aggregated content derived from relevant web sources. The secret sauce added to the mix is PulseRank, OneRiot’s domain-based algorithm that is supposed to instantly determine a site or blog’s “social” relevance.

While OneRiot bills RiotFeeds as “a new way to track the web’s freshest buzz on your favorite topics,” the emphasis is on relevance, not volume. I’ve subscribed to several RiotFeeds for more than an hour now and haven’t seen a single tweet. I eagerly await the next tweet from @TightPantsPulse (which promises the latest on “hipsterism”).

BTW, the most popular RiotFeed categories so far — based on number of Twitter followers — are Technology, Sports, News, Fashion & Style, Green Living.

OneRiot spokesperson Courtney Walsh says more categories will be rolled out in the coming weeks, based in part on requests from users. Those could include Nonprofit, Jobs & Careers, Web Developer News, Books/eBooks, Movies, Women and Mobile.