The tech press got a whole bunch of articles up very fast about Reader alternatives. I'll list some of those below, but let me note the major difference between types of alternatives: magazine-style readers such as Pulse, which are graphically-oriented and have lots of photos, and text-style readers, such as The Old Reader. After looking around a bit, I'm pretty sure I will go to The Old Reader, but you should know that right now they are experiencing heavy loads and won't be able to import your feeds from Reader.
- Gizmag, The Best Google Reader Replacements
- Lifehacker, Google Reader Is Shutting Down; Here Are the Best Alternatives
- Marketingland, Twelve Google Reader Alternatives
Plenty more articles like the above out there. Let me know what you think of other feed readers.