Like Sidsara I use delicious.com. It's waaay better than bookmarks.
Originally Posted by BillyIdol
I have several amazons list. The public one is good to share with family for holiday and birthday gift ideas.
I'm finding however that more and more for books that I don't plan to suggest as gift idea, I'd rather have a simple memo on my palm called "books to buy". This works really well if I see a great book when I'm in a bookstore and I'd like to jot it down, or if I find myself in a bookstore, with some spare time and I'd like some browsing ideas. I'm doing the same thing for music.
Omnifocus - iPhone - iPad - BusyCal - Spacepen - Field Notes notebook