Train your own classifiers and share them with others
netEstate operates the platform textclassify.com where you can train machine learning algorithms with you own data.
Upload example texts classified by category, sentiment or other conditions and learn the precision for classifying unkown texts (10-fold cross validation ).
If you are satisfied with the results, you can buy API calls to classify new texts via Paypal.
Additionally, you can use existing classifiers of other users or share your classifiers with some or all users.