I quite like Evernote. I signed up ages ago, and then didn’t use it because I started using Delicious instead, and now I also use Pinterest, so Evernote fell out of favour. However, from my point of view, the main advantage Evernote has over these other two bookmarking services is that it’s available as a mobile app so I can sync it with my phone and therefore use it when I’m not sitting at a computer, which (obviously) makes it much handier for noting down things I have to remember, things I like the look of, books I might want to read, etc.
I’ve managed to install Evernote on my computer at work (which is surprising, as usually we can’t download/install anything!) and on my computer at home, and on my mobile phone. I think the fact I can now use Evernote on my phone will mean that I use it more than I would have done otherwise, but we will see how it goes. I’ve found it very easy to use so far and I particularly like the fact that you can just drag and drop files, photos, etc., into it. I think it will also be useful for looking at work files (i.e. the rota) without having to either email it to myself or try and access the VPN, which seems to not be working on my computer at the moment, having worked perfectly well before!