Source (Twitter Client) whitelist to avoid targeting bots?


Is there a Twitter Client whitelist floating around out there that will let me identify either:

  1. Twitter clients (“source” field string) that are actual users so I can target marketing campaign to actual users

  2. Popular automation clients that are businesses who you might engage on Twitter for B2B marketing.

I tried to start a list myself, but I quickly realized that there are a lot of things to look for, and that just sampling certain topics won’t give you a great spread. There’s Google as a source, which I believe is YouTube sharing traffic, and obscure things like PlayStation Network that a user might use to share tweets. If I just target Twitter Web Client, TweetDeck, and iPhone/iPad/Android twitter client, I’m gonna miss a huge chunk of people.