http://www.singletrackworld.com/forum/tags
Gets you the current most popular.. like at the bottom of the summary page.
Then add any potential tag you like after that.. thus..
http://www.singletrackworld.com/forum/tags/shimano
To bring up a list of tagged threads.
A few pointers though.. Multiword tags are unlikely to serve any purpose as the more popular single word tags will quickly outnumber them. Useless tags ie the egotistical ones that are just a posters name will mostly be deleted. Keep the tags simple and useful. It’s nicely ironic that the more clever you try to be by using multiple words, slang, bad spelliung etc the less anyone will ever use your tag.
Plus we are deleting the vague, useless and rude manually so it just makes more work for us when we could be tweaking and adding new stuff to the site.