There were a couple of different photo contests and challenges - I particularly liked an underwater photo contest. That one stopped about 6 months ago and it was just burnout by the admin. All types of social media will suck in as much time as you can give them.

Speaking of that, an interesting research study on how too much social media causes depression: https://newatlas.com/social-media-increases-depression-loneliness-fomo/57202/?utm_medium=email&utm_campaign=2018-11-13+154504+USA+Daily+Basic+2018-11-13+154842+Study+finds+social+media+is+making+us+feel+lonely+and+depressed&utm_content=2018-11-13+154504+USA+Daily+Basic+2018-11-13+154842+Study+finds+social+media+is+making+us+feel+lonely+and+depressed+CID_310aac82d65ceb572a43990637daf2df&utm_source=Campaign+Monitor&utm_term=Read+more&fbclid=IwAR1evaLXpv48qNG127UDKdGM-rHa3VJ7kBRfAvFpyS26XAt3kRGWht9roBw