How to Use TweetReach
What should I search for?
The idea behind TweetReach is to calculate how many people have seen something you've shared on Twitter. For example, if you've recently tweeted a URL and several people have retweeted it, search for that URL to see how many total people saw it.
Any special advanced search stuff?
Sure is. We support all the nifty search.twitter.com operators. So feel free to get your specificity on and limit things by date, exclude certain terms, use ORs, etc.
Why does it sometimes take so long and why can I only see 50 tweets?
We have to do a lot of communicating back and forth with Twitter to calculate all this stuff. Sometimes that takes a while. We limit the number of results because Twitter limits how much we can communicate with them.
Can I see more than 50 tweets?
Yep. You can click "Get the Full Report" on a results page. It costs $20 and goes back as far as Twitter will let us which means the report will contain up to 1500 tweets from the last 7 days.
What are these crazy calculations?
Basically we search Twitter and find all the tweets we can. Then we look at everyone who tweeted and who follows them to make a set of calculations.
The reach is the total number of different people who would have seen tweets on this topic in their Twitter stream. This takes into account people who follow the same people.
Here's a reach example... Let's say you have two loyal followers: User A and User B (don't worry, you'll get more popular). You tweet a link and they retweet it. They both have a loyal follower in common: User C. User B also has a second follower: User D. In this case, the reach comes out to 4 because Users A-D have all seen a tweet on this topic at least once.
If you're paying attention, you'll notice in the above example that User C would have actually seen two tweets about this topic, which brings me to exposure... Exposure is how many times someone saw a tweet about a particular topic. If 5 people I follow tweet the same link, I'll have been exposed to it 5 times. Each time someone sees a tweet, we call that an impression.
And why should I care?
This is helpful information if you want to know how many people have probably seen something about your hilarious TwitPic of your cat, paradigm-shifting blog post, tweetup, event, shindig, world-saving cause, box social or mind-bending product launch. It also has some pretty graphs.