I'm quite taken with this index of financial management articles in INC Magazine.
They have done a great job of breaking out the topics and, while the articles are a little fluffy for my tastes, they provide a great starting point for ideas if you're stuck. Here's an example — what about doing a “trial run” of your business (or business-function, or project-deliverable) before opening the doors? Read this article to learn more about a fella that did that very thing.