Fine beautiful photo collage might give some good idea for web sites.
Collage of tea is compound of four photos of the same subject and expression, colors are also very sober. It has this calm, relaxing feeling of having a break.
Collage of Paris architecture is also very beautiful and telling the most important statement to come and visit this beautiful city.
People collages might be useful for every site, business or fun.
So many possibilities in one image that is a good idea for every one that looking for inspiration.