Few days back I started learning jQuery to create few drag n drop elements (widgets) for my news aggregator. First and quick impression about jQuery - truely a write less, do more javascript library. Doesnt take more than couple of hours to learn and start writting / integrating with new /existing apps for creating intuitive and quick UI along with necessary functionalities.
I hope I can publish my advanced aggregator soon which is in progress using AJAX, jQuery in ASP.Net.