I can't believe I've been an Android user for over two years and I just discovered this app.
It's awesome. (It's been around for a while and has over 5 million downloads so I apologize if this is a repost for you)
There have been so many times where I've looked up directions on Google Maps on my PC or had a website open I wanted to continue looking at while getting ready to go somewhere and wished I could just send it to my Droid.
Enter Chrome to Phone.
Install the app on your Android device then install the browser extension (Chrome, Firefox) and it adds a little button to the corner of your browser to send it instantly to your phone. It works with websites, specific selected text, phone numbers, and addresses/directions in Google Maps.
Seriously one of the coolest apps I've ever installed.