In fact, it's delicious! Delicious.com is like bookmarks on your browser, but infinitely better. First of all, it's web-based, so you can access it from any computer just by signing in. (I know, I know, another login.... but if your computer is secure, you can opt to stay signed in for 2 weeks!)
Also, instead of putting your bookmarks into folders that only categorize by one topic, you can tag each website with as many categories as you want! For example, you could tag Organizing Teacher under blog, organize, declutter, ideas, teacher, resource, and more!
I downloaded the plug-in for Mozilla Firefox for using delicious at the click of a button. Now, whenever I'm on a website I want to save, I just click on the tag icon (which is just to the left of the url box) and a new window pops up, all I have to do is pick some tags and hit save. I really like how they pull up a group of your previously used tags and a group of "everyone's" tags to suggest what to tag the site under, you can just click on some options, and/or type in new ones. It's really quite simple.
If you don't want to download the plug-in, you'll have to open a new tab or browser when you want to save a website, log in, cut and paste the url, and then input some tags. It's not difficult this way, but I like having the plug-in.
One more thing, you do have a privacy option, but I like how delicious has lists of the most popular sites, you might find some gems, just browsing there.
I'm sure there are other sites that offer similar services, but this is the one that I found first and use. (It's not broke, so I'm not fixing it.) Feel free to put some links in the comments to other tagging sites that you use.
Please comment or send your questions to me at email@example.com
Have great day!