Step 0: Bookmark this page so it doesn't get lost as you move between sites.
Step 1: Find your item on the Amazon.com web site. <- this link pops up a new window!
Step 2: Locate the ASIN code:
An Amazon link looks like the following:
Or possibly like this:
That ten digit number in bold is the important one. It won't be in bold and in rare cases it's not ten digits, but it will be near the beginning.
Step 3: Paste the ASIN code in the box below. You'll be automatically taken to the item on the Amazon.com web site and can continue your purchase or copy the link to paste on the bulletin boards.