The blog has a tags page now. It's exactly what it sounds like.
What happened
I added a page at /tags that lists every label the blog uses, sorted by how many posts have that label. You click a tag and you go to a page showing only posts with that label.
Before this, tags existed on posts but there was no way to browse by them. Now there is.
It also gets added to the sitemap, which helps search engines find it.