You can simply do a search for silly memes, inspirational memes, motivational memes, etc for a boat load of memes that have been created over time. For those of you who are worried about "copyright" infringement, 99% of people who post memes are not copyrighting them. Usually they are just tools to gain exposure like you are about to do anyway.

Here is what you do:

1. Perform a search

2. Click on a meme

3. Click View Image and right click on the image and select save image

4. Save the file wherever you want and then upload it on one of your Pinterest boards

This is basically how you post memes. You can post a meme on Facebook, Twitter and Instagram as well. There is no limit as to many you can do. Just make sure it's relevant to whatever message you are trying to say if you are tying it in with particular content. Have fun with your content guys..there's more than one way to skin a cat...lol