There are many libraries and agencies that will accept work submissions online, we have gathered together a selection for you below. Why not also grab a copy of The Freelance Photographer's Market Handbook to find more places to sell your work?
Mira.com - The stock agency of the creative eye cooperative. Click the participation link to find out more about joining the cooperative.
The Wellcome Trust Medical Photographic Library - the world's leading source of images on the history of medicine, modern biomedical science and clinical medicine. Click the link 'contributing images' for more information.
Photolibrary.com - one of the leading independent producers and distributors of contemporary stock photography. Direct link to submissions page.
Sin - photo agency specialising in popular music culture.
Science Photo Library - leading provider of science images. Direct link to photographer information.
Alamy Images - 65 or 75% of sale goes to the photographer. Direct link to contributor section.
Stockshot.co.uk - Adventure sports library. Click the contact us page for photographer enquiries.
Rex Features - 'Britain's leading independent photographic press agency and picture library'. Follow the contact us link for photographer information.
Workbookstock.com - stylish image library. Direct link to submission information.
Foto Search Stock Image Archive - online photography archive. Browsing through the library is free, and there are no access charges, registration requirements, or usage limits.