Wanting to make a family photo site...

Sorry to jump in here, ericg75!

So, what you'd like to do, can be accomplished in different ways through Dropbox:

1) By sharing a folder with your family with edit permissions; they'll be able to add/delete/edit/comment on the photos in the folder, but they'd need a Dropbox account with enough space, as the folder would need to be added to the account, for them to access it.

2) By sharing a view-only link to the folder; this would give them view/download/comment access on the photos, but they won't be able to add their own. For that you'd need to send them a file request, as the link doesn't give read-write access to the folder.

This way, they won't need a Dropbox account with enough space, or even a Dropbox account at all.

3) By upgrading your account to Dropbox Family; this would create a family account, to which you can invite your family members, share the space with them and give them access to the family room folder, where you can all contribute with your photos.

I hope this helps!