In reply to andy healey:
Send to a news agency with a who what where why when would be the usual procedure. They'll syndicate it, someone might license it and pay the agency who will then give your brother 50% of their earnings. If it's used digitally - as most successful submissions are - he'll make about a tenner or less most likely - not kidding. Alternatively, he could repeat the process by sending it straight to a newspaper(s) be promised slightly more but good luck getting paid.
South West News Service picture desk (don't be fooled by the name) are the best bet I find, their email address is easy to find. Honestly though, unless it's a world beating, highly newsworthy series of images, ideally accompanied by video, it probably isn't worth the bother.
Sorry to sound cynical, but press photography is tough these days. Good luck!