Difference between Tagging a thread and Subscribing here on vb.org?

[ludachris]

Just did some searching and found that there isn't a Mod available that does what vb.org's Mod Tag feature does. Just curious if there's a page that has a description of tagging versus subscribing. I've been looking for something simple to implement on one of my vb sites that acts like the Tag feature here, something similar to subscriptions but more simple... like a thread bookmark list. Looks to me like the Tagged Mods don't have notifications like subscribed threads. That's all I'd need.