Finding training data for tweets with labels: positive, negative, neutral

Are there any training data of tweets with labels: positive, negative, neutral as following:

"tweet 1" positive
"tweet 2" positive
"tweet 3" neutral
"tweet 4" negative

Or in general are there any good site for finding training sets?

>Solution :

You can find good training datasets on kaggle!

A good example would be the Sentiment140 dataset with over 1.6 million tweets. They have been annotated with (0 = negative, 4 = positive) – but it’s explained on-site! 🙂