Have an old font that's not working right? Maybe it's PC-only and you're on a Mac. Here's a free service to convert fonts –
FreeFontConverter.com allows you to quickly convert between many font formats without the hassle of installing any software on your computer. Our service works on any operating system including Windows, Mac and Linux. Our font converting service works for all of the common font formats including TrueType (.ttf), OpenType (.oft) and PostScript (.ps). We can also convert many of the less well known font formats including Suitcase (.suit) and Data Fork (.dfont) fonts.
Thanks to Rod Harlan for pointing this one out.