A quick hack to generate a weighted contact intersection venn diagram for a Flickr user and their closest neighbors. It was used for research purposes to see how socially interconnected a specific Flickr members is (e.g. do they have any marked contacts with whom they have high social network overlap). Warning: this can be REALLY SLOW to run for highly-connected Flickr members.
You will need to put your own API key/secret into the variables of the file.
Usage:
python flickrsocialvenn.py -u username
The last thing it dumps to STDOUT will be a URL to your graph (via Google Charts)