Add architectural events to website

My website [login to view URL] aims to list architectural and related events mainly in London, but also for the rest of the United Kingdom and ultimatively everywhere. I have implemented several ways of adding events from other websites, and am about to add more. To test how it works, you can simply register via facebook or my site itself, and check the interface yourselves. I'm looking for an interested and reliable person for a position paid per added/modified event listing (enhanced with pictures, extended event text, even commentary, updating the events location to show on my Google Map addon etc), also to promote it on facebook / twitter. More details via messages. As for the budget, it negotiable and not so much per hour as per event/10 events - we can discuss and agree.