caption/title software

Software is critically absent for the very basic, time-consuming task of attaching titles to image files to be viewed online.
It is of course impossible to include this info in the file name (no caps, punctuation marks, hyphens etc etc), but surely there must be some way of embedding text so that it poings out when the image gets to its www or email destination?
Every time I upload a jpeg of a work I have to re-type its title, dimensions, media, year, etc. It seems so UNNECCESSARY .

This puts me quite off touting about and i am a pathetic self-propeller at best.