Should I include web links in my statement of purpose?
My feeling is that whether including a link is a good idea or a bad idea depends on how you are using it.  A statement of purpose should be a generally self-contained document.  Thus:


If your statement of purpose is difficult to fully comprehend without following the link, it would be in a problem (whether in computer science or elsewhere)
If the statement of purpose is complete without the link, however, and the link is essentially an faster alternative to googling for more information, then I would find it a useful courtesy to the reader.