created_at, hashtags, user_mentions, favorited, geo, id, retweet_count, retweeted, source, text, truncated. That's just a small selection of the important elem

created_at, hashtags, user_mentions, favorited, geo, id, retweet_count, retweeted, source, text, truncated. That's just a small selection of the important elements delivered in the single tweet JSON packet. I didn't even get into the 'user' stuff, which is included so that all of the other fun things about the user can be displayed. (Note: this is using the web interface to Twitter, which is what I'm assuming the OP was implying)