Each week there is a prompt for a picture (or two or three if you want!), sometimes something 'concrete' like Fruit, sometimes something a little more 'abstract' like Cute.
Some people look through their lens throughout the week to spot something new, some people just look through the files they already have, others do a bit of both. We don't mind, really, as long as it is your picture. There is no requirement to post for every prompt, either, although some people do, as a personal challenge.
But the more people posting pictures, and/or commenting, the more interesting it is for everyone.
So - if some of the communities you used to follow are no longer active - why not try something a bit different and come and join photo_scavenger?