Just in case it wasn't clear from all the replies here, using an unknown rel-attribute on links doesn't do anything, and since the default behavior is to use links normally, this just treats links ...

Can I have ugc, sponsored and nofollow links on the same page. Is it going to confuse Google and panelize me. Eg. in first para, I have a user generated url for reference I will give rel ugc here and ...

Any WordPress plugin that is involved with user generated content and links may have to update their code in order to support the new code. The WordPress announcement did not specify if plugins using ...

Google is evolving the nofollow link attribute and introducing additional attributes to help Google understand the nature of links. The two new link attributes ...