How do I add text around a circle I'm using for a logo? I have a circle filled in with some initials on the inside. I want to add the company name around the outside of the circle.
This is not a feature Pages '09 or Pages '13 provides (unlike Microsoft Word with the Wordart).
As XAleXOwnZX suggested you definitely should look at softwares that are made for what you want like InkScape or Illustrator.
You can try Art Text, the app offers different shape presets for text, including ring and freehand splines. The resulting work can be exported as an image file and used in Pages, Keynote or anywhere else.