Wth th nvntn of th dgtl mr, mt f us have lrg lltn f ht n ur rnl libraries. Sm hv ht in vrl lbrr like iPhoto, Picasa, nd Flkr. Amngt the hundrd of photos w hv, thr are mn that wuld ulf as tk ht. Th photos tht w identified as stock, n b uploaded t a numbr of dffrnt ht tk sites. On thr, th are made vlbl for purchase and download t ntrtd buyers.