I've blogged about using Wolfram|Alpha (W|A) widgets for general use. Since I teach an online intro stats course every year, I thought it be handy to embed the widgets right in the topics section within the course management system. W|A widgets can fetch some data distributions - it's a lot easier to insert these types things at point of use rather than to send students to web sites all over the Internet. Also, I do not have to type extra instructions so that students can obtain the proper data. Here is the one I plan to use for some health statistics. ( I noticed that the units on the plot for height and weight seem to be inconsistent with the text - puzzled by that one, since W|A is usually pretty accurate.)