When it comes to Pinterest, size does matter. Having properly proportioned images helps make your boards look inviting, and some image sizes are more often clicked than others.

For example: long, skinny pins are the most clicked-on, because visitors have to click them in order to read the whole pin.

Caitlin Muir, an editor for The Social Media Club, provides a Pinterest Cheat Sheet that spells out which image sizes show up on Pinterest in various sections, and how to use those sizes to your advantage.

Naming your Pinterest images: Choosing strategic filenames can help boost visibility for the images you pin on Pinterest. If you're posting photos from a camera, change the default file name to incorporate keywords, and use hyphens to separate.

So, a photo of a birthday cake from Nancy's Bakery with a default file name "DSC_5011.jpg" might be renamed "nancys-bakery-custom-cakes-birthday.jpg" for posting on Pinterest.