Blog them all

TweetSell.it allows you to see what’s being sold on Twitter, in real-time. You can also see what’s being sold near you, or search for specific items like the iPhone4. I’ve had the idea for a long time, but I only released the service a few days ago.

What do you think? How do you like it? What should be included? Let me know here or through my twitter @fabienpenso. There are more features to come later like online payment.

I’m working on a service using the streaming API from Twitter, a great feature as it gives you instant access to Tweets. But then you get overloaded by Tweets, and because I’m looking for Tweets talking about money, I get lots of noise.

Looking at TwitBlock, I filtered out lots of it :

1. Ignore tweets from recent users (if created less than 24 hours ago)
2. Ignore tweets from users with default profile image
3. Ignore if fewer than 10 followers
4. Ignore if user description and name are blank
5. Ignore if followers fewer than 100, and friends count is > (2*followers_count)
6. Ignore if followers count over 100, and friends count is > (5*followers_count)
7. Ignore if the user sends more than 20 tweets per day in average, since its creation

Some of these is working for me, but might not work for you at all. However, I think there could be a better way for a mass use. I ran mail servers for years, a very reliable way to handle this is to use DNSBL (also called RBL). You could have different RBLs for different use, and any twitter client could implement this very easily. Please note this could probably not work for Direct Messages except if Twitter grant specific access to the service, which they would probably never will.