Some features of the website:<p>- I've used an exponential decay similar to the one used in HN, except much faster in decaying.<p>- Only tweets from today are shown.<p>- The rating of a tweet is determined by 2 factors: the number of retweets and the votes on TweetFad (retweets have a much smaller weight compared to votes).<p>- Users can add their content by simply including the hashtag '#TwtFad' in their tweets. To submit tweets to a particular category, the users can add #[category_name].<p>- For each category, I've added some influential twitter accounts and hashtags to monitor for tweets. These are automatically added to the listing if they have a retweet count greater than a threshold.<p>I would love to hear the comments and suggestions of the HN community. I'm a long time reader of HN, and this community has helped me learn a lot I would also like to take this opportunity to thank everyone here!