Best place to save photos?

[anitatally]

Forgive me if this question is too simple - I have searched the Board and most of the users are WAY more advanced than I. I turned to XnView when Picasa was dumped by Google, looking for a way to save captions. I have been very happy with the software.
My question: All my photos are stored on two external hard drives. Is there somewhere on the internet where I can store these photos along with all the metadata? Will that require saving the full-size file for each photo? And I assume that means using a paid site for storage? Thanks in advance for your help.

Anita