Is there an existing "book mark" function with in the forum system?

[Mother Goose]

Does smf have a "book mark" function so members can find a thread they often refer to? If it isn't already a part of the forum, is there a mod that does this? I tried a search and no luck.

Thank You! 

[Mother Goose]

Opps!! I take it back!! I found the Mods that do this. <blush>