Online use still being a new field, the scope for negotiation and the range of outcomes is enormous.
Photographers submitting pictures for use online should seriously consider "watermarking" them. It's not perfect, but it may help in tracking unauthorised copying. Photographers need to obtain an identifying number to go in the watermark: the NUJ recommends the Visual Creators' Index (see the link below).
The National Union of Journalists must not, can not and would not wish to dictate rates or terms of engagement to members or to editors. The information presented here is for guidance and as an aid to equitable negotiation only.
Suggestions apply to contracts governed by UK law only. In any event, nothing here should be construed as legal advice.