As you've probably discovered, there are many Internet sources for examples of C++ code. StackOverflow, CodeProject, etc. all have examples of source. But of course, they're all over the map in terms of quality and educational value.
I think, in this area, books still trump the Internet. There's no substitute for going to the bookstore, thumbing through a few tomes, and picking one that you find readable. They've been proof-read (unlike may Internet submissions), so the samples are more likely to work and to be of high-quality.
While the books typically have small snippets of code or a few functions, they usually come with a CD or URL that points you to more full-blown examples.
O'Reilly, Thinking in C++, Petzold, and Wrox (and more) all have good books on C++.