This is not the greatest strip in the world, this is just a tribute.  There’s so much to love about xkcd.  First of all, as an engineer and self-proclaimed geek, I love the humor of the comics.  Second, I love the easter eggs in the form of the alt tag.  Third, I love how he can be so expressive with just stick figure characters.  Fourth, I love that Randall can publish the comics under the Creative Commons license and still make money.  If you put something out on the web and people love it they will copy it to their blogs and websites.  Why make criminals out of them?  Instead, embrace your fans and let them share you all over the net.  That way you will become even more famous.  Let’s hope that Randall can keep at xkcd for years to come!