Low-end:



·         Mechanical Turk (https://www.mturk.com/)

·         Guru (http://www.guru.com/)

·         oDesk (http://www.odesk.com/)

·         Elance (http://www.elance.com)

·         People Per Hour (http://www.peopleperhour.com/)

·         Freelancer (http://www.freelancer.com)

·         Text broker (http://www.textbroker.com/)


Mid-range:



·         Adfero (http://www.adfero.co.uk/) (moved to bottom of mid-range as per comment)

·         Reddit for hire (http://www.reddit.com/r/forhire)

·         Copify (http://www.copify.com/)

·         Pure Content (http://www.purecontent.com/)

·         CopyPress (http://www.copypress.com/)

·         Content Now (http://www.contentnow.co.uk/)


High-end:



·         Individual Freelance Writers (anyone have a good freelancer writers directory to link to?)

·         SixEstate (http://sixestate.com/) - added via comment. Not used directly but the case studies on their site look very high quality.

·         The PCA (http://www.the-pca.org/) (can you hire them directly?)

·         Press Association (http://www.pressassociation.com/) (can you hire them directly?)

·         Individual Freelance Journalists (e.g. http://www.journalism.co.uk/dire...)