go to the hub you want to send to you friends. At the bottom Hub you will see a bar where it says "Print" , "Share It" , "Rate It"
Click on the "Share It" and another small window will open and it will give you choices of who and where you might want to share it. I would think for you to send it to you friends the easiest would be to email mail it. Depending on how you have your computer set up, this should open your email program and the link should be in the body of the email. If your email program is not set up to the email you want to use then use the "Link It" options and there you can cut and paste the link to whatever email you want it in. I hope this helps!