I set up my own bookmarks for pressure cooking, both recipes and books. I have set up other bookmarks for rice cooker recipes, cast iron cooking, freezer cooking, and more. They are amazingly useful to have. When I find a recipe I like out in the internet wilderness I make sure I add the appropriate personal bookmarks at the time I index it (thanks EYB for having that option!).
In the official, I'm kinda OCD category, I have a breadmaker that I use quite a lot, and I have a recipe bookmark for "Breadmaker-All in Machine" to break out those recipes that can be made beginning to end in the breadmaker, not just for the mixing and kneading parts. I have gone through my indexed bread cookbooks and added that bookmark as appropriate. Sounds crazy, but when I want bread, and my life is whackadoodle I need a no fuss option.
I really like how bookmarks can be used to refine search results to fit my personal needs and style of cooking - it makes EYB just that more useful to me.