Welcome aboard :) No need to use tracking sites like tinyurl here, the bbcode syntax allows you to hide the long URL if you want to: This:
[url=http://www.somelongurl.com/long/long/long/long/long.htm]on ebay[/url]
Looks like this: on ebay No, that won't work, they're just switches. Depending on how they're wired (it's not clear in the listing, only one connection is given per switch, so maybe they just output 5V when held in?) you may be able to connect those switches to a DIN, or to J5.