Much as I hate to admit it, semicolons are terribly old-fashioned; look, now that I've consciously used one, I feel like saying "Harrumph!", "2nd inst.", "Yrs etc." In fact, these days it would be a pretty safe bet that more semicolons are used for winking smileys than for punctuation. ;-)
Yet here's a lovely little 2008 article from the New York Times about the public recognition received by a semicolon put in a City Transit sign by the transit agency employee Neil Neches.
Apropos of nothing, of course; I just thought you'd like it! ;-)