Number words? on Facebook?

[Tiffany]

I feel kinda stupid asking this question...but I really want to know what it means. So on facebook some of my friends are posting status updates like this:
Just got done doing running in the rain & having
a marshmellow/ orange/ water bottle fight.
#makingmemorize.♥

What does this mean: "#makingmemorize."
is it the way she is feeling? or what?

Another Example:
Got in trouble for laugh dying the move so we
took a trip to Mrs.Dyers room to do some stuff.
Then walked in the poring rain to computers❤
#goodday#lovethisgirl.♥

So sometimes there are multiple "#forexample" or just one. I just don't get it! what is this???

[☻]

It's a hashtag.
Basically means what it says.

[Thomas]

Thats called hashtagging. its completely useless on facebook. thats done on twitter to show common interest.

[abraXus]

it means they have their facebook account and twitter account synced - and they post using twitter, using the # as a category identifier, which then carries over to facebook, because of the sync

the # doesnt actually do anything on facebook tho