LOL giddy1, those fishermen, eh !
One can't be sure, but anything that hints of horn tends to mean dozens of pop-ups and various unpleasant bits of malware, so it is possible those links led to something which downloaded some kind of dialer onto your PC, as a new Dial-Up Network Connection.
You can delete this by selecting it and removing it, and see if this fixes things, otherwise you will have to hit it with anti-spyware programs, and opt to turn on / run a firewall package. (I've left the PC world for the dark side - Apple, LOL - but something called 'blackice' used to be an industry leader in this field).
HTH