If you're not using
LastPass, get it. It's a browser extension that generates random passwords and manages all your login information. Here's a NYTimes piece on it:
LINK. Can't live without it. Plus, if you use multiple browsers (Chrome, Firefox, Explorer) you'll have the exact same access information all the time, regardless of which browser you're using.
Second, Bit.ly. Put their link creator in your toolbar and when you come across any article you're reading, it's an easy click to grab the title of the article (or any text you've highlighted) and create a Bit.ly shortened URL. You can then send it out via e-mail or twitter. Simple, super effective.
I use both of these products dozens of times a day.