Unlinked URLs Don’t Count as Links
Unlinked domains and URLs within body text don’t have any ranking benefits. if something isn’t linked, it won’t count towards PageRank.
You Don’t Need to Remove Links If Asked
If someone asks you to remove a link to them, you can just ignore them. They can disavow you if they want, which won’t harm your site.
Most Affiliate Links Are Automatically Nofollowed
Affiliate links for main affiliate programs are automatically recognised and effectively nofollowed. They won’t cause penalties.
Affiliate Links Should be Nofollowed
Affiliate links should be nofollowed like any other paid link.
Google Plus Posts Are Treated Like Any Other Page
Google Plus posts are ranked, and pass authority to other pages, in the same ways as normal web pages, not in any special way.