2 Collage: The London Picture Archive collage.cityoflondon.gov.uk

Image libraries vary from utilitarian interfaces, to more tablet-friendly fare. This example from the London Metropolitan Archives has been given a makeover, and is notable for its size. Here, you can access more than 250,000 historic pictures of London streets including the former London County Council’s own photographic collection, which you can explore by themed galleries or via the fantastic picture map. Incidentally, the LMA is also on Flickr ( flickr.com/ photos/londonmetropolitan archives) and I particularly recommend viewing the albums ‘London During the Great War’ and ‘Markets’.