Sizing photos and videos for social media !

There are lots of different sizes you need to know these days when uploading photos or videos to social media .Facebook has one size ,Instagram another and Google + yet a different size again.Nothing looks worse than a head half chopped off so it is well worth spending time to make sure before you upload you have the right size. The next thing with the ever changing things you can do on social media is to get the right size for any videos you may want to upload .Facebook now has a feature for a video to go in the Timeline banner space. I think for business pages only not for our own private account as yet so I was quite surprised that my dog who has her own Facebook page had the video facility on hers !