In this thread there was a link to an Amazon book. But the link showed for some people but not for others (I have a Mac if that is the difference). When I copied and pasted the link myself the forum software turned it into this: Code: [MEDIA=amazon]1502435144[/MEDIA] [MEDIA=amazon]B00ONU4ZQS[/MEDIA] Which is invisible to me when posted. So I tried: Code: [url=http://www.amazon.com/dp/1502435144/?tag=postedlinks04-20]Synthesis Alpha[/url] The link showed but went to a dead Amazon page. I had to do this: Code: http://www.amazon.com/Synthesis-Alpha-1-Tim-Arthur/dp/1502435144/ref=la_B00OKCDJES_1_1?s=books&ie=UTF8&qid=1413864328&sr=1-1 It gave me an address I could copy/paste into the address bar and get to the page.