Expression of the Day

I just read news that PicApp, the web software that I was using to post legal expressions of the day, has discontinued their service of providing free content (photographs) to bloggers and others who used their images. 

With that, I no longer have a source for expressions of the day.  If anyone knows of a similar free service that has lots of photographs that are free to use for a blogger, please let me know.  Otherwise, this feature will cease as well as I  respect copyright laws.