Yes, according to [this answer][1]:

> 2012-01-10: The Announcer, Booster and Publicist badges can now be [earned multiple times and they can also be earned for the same question](http://meta.stackexchange.com/questions/118484/booster-badge-should-be-golden-or-easier-to-achieve/118509#118509). The time limit has also been removed. **Sharing direct links to answers now [also counts](http://chat.meta.stackoverflow.com/transcript/message/816147#816147) towards these badges.**


 [1]: http://meta.stackexchange.com/questions/59445/recent-feature-changes-to-stack-exchange/117903#117903