VideoLectures Recommender System Challenge

An interesting challenge to make video lecture recommendations based on the historical data from the VideoLectures.Net website. Prize is 5,500€. Here is the link to the challenge

SMS message classification, SPAM and legitimate

This should be a very interesting problem. Here is a link to a dataset of SMS messages that have been collected for mobile phone spam research.

Legitimate: MY NO. IN LUTON 0125698789 RING ME IF UR AROUND! H*
Spam: URGENT! Your Mobile No 07808726822 was awarded a L2,000 ...