The monkey at That's My Monkey is actually the aggregate alter-ego of brothers Bruce and Michael Snell -- Bruce is a wedding/portrait pro and Michael is a travel/stock shooter -- who have created a web site with free tips, tutorials, and how-to articles for digital photographers. They also offer various sets of Photoshop actions which they sell relatively inexpensively (under US$10 in most cases).
Though not aimed primarily at the most experienced pros, the tips and tools available on the site span a fairly wide range of skill levels, and there's especially good stuff for anyone interested in the brothers' two areas of specialty -- wedding and travel photography. That they don't take themselves too seriously makes it all the more enjoyable.