Here is a list of other useful photography related websites that may be of interest to you.
The PAGB is a membership organisation that co-ordinates activities for photographic Clubs in the UK. It does this through 15 geographical Federations. The PAGB awards its own photographic Distinctions, known as Awards for Photographic Merit.
500px is an excellent site for professional and amateur photographers to showcase their images to a worldwide audience. It is also a very useful resource for researching possible photographic venues.
Blurb is a self-publishing utility that enables anyone to create, self-publish, promote, share, and sell their own print and ebooks. It is ideal for publishing photo albums in softback or hardback.
The RPS exists to promote photography and image-making and to support photographers in realising their potential, irrespective of their level of knowledge, equipment or skills.
The Photographer's Ephemeris is a tool to help you plan outdoor photography in natural light, especially landscape and urban scenes. It is a map-centric sun and moon calculator: see how the light will fall on the land, day or night, for any location on earth.