Design for Your Audience

Louis Rosenfeld has started a 5-part series on Information Architecture. Part one includes this:

Step #1: Ban the word “redesign” from your meetings.
Step #2: Determine who your most important audiences are.
Step #3: Determine each primary audience’s 3-5 major needs.
Step #4: Make damned sure your site addresses each of those needs.

Great words of wisdom, I think! Now… who are your library’s most important audiences?