Check out the posts using the tag here
https://steemit.com/created/upvoteplankton
It's simple to use.
If you're a plankton (less than 500 steem power), add the tag, it may get you some extra attention and upvotes
If you want to support new users and smaller steem power holders, browse the tag and spread a few upvotes.
Simples
@kabir88