Button, button...who's got the button?

I finally figured out how to get that dang button for SPC on my site. I am certainly not an html expert, but I have proven to myself that I am very visual. I looked at the code for the SPC button right next to the code for another button and discovered that the quotation marks around things on the SPC button looked just a teeny bit different than the ones around the other badges. I changed the quotation marks given on the SPC badge to the marks from my keyboard and voila....it worked. Now what I want to know is what were those on the SPC badge? Why don't I see anything like that on my keyboard. They were "backwards" so to speak... Interesting. This is the kind of stuff I can waste a good hour on for no reason other than to relax. Heh. ;)