How do I follow a specific tag without having a piece of content with that tag?

How do I follow a specific tag without:

1. Finding a piece of content tagged with the tag and then just clicking on that tag
2. Creating a piece of content and tagging it with that tag so that I can then click on that tag

Use case: I saw in the list of tags that there is a tag called "SAP Web Analytics". I want to follow that tag. But I cannot find how to get to the tag page to follow it. I know that once I post this question and tag it with "SAP Web Analytics", I'll have my tag link and can follow then, but it seems like we should be able to get to a tag page without either 1) or 2) above.

Bonus question: how can we see a list of user-generated tags?