Eric,
Here's the scoop on posting a link.
When you have the intended page up in a browser window, go to the address bar above and right-click on the address. Choose "copy"; this puts the info onto your computer's "clipboard". Then go to the post you're composing and right-click where you want the link, choose "paste", and Bingo! you're done.
So easy, an Esq. can do it!