I don't know much about British politics, but apparently the British National Party is a whites-only supremist nationalist facist party there. They spout Holocaust denial nonsense — you know the type (hopefully, not well).
Anyway, their rather expansive secret membership list is no longer "secret" having been made available for download here and here. The list includes BNP members who are also parliamentary candidates, and well, everyone apparently.
For amusement, go to this website and watch the membership freak out in the comments; things like: "I can't believe it. I own a PC retail outlet and this could ruin me, It makes me want to puke on my shoe."
Pictured above: World's Smallest Violin