There's something new on the horizon in the rash of copyright protection services called Attributor that announced major VC funding yesterday. The WSJ ran a piece about how Attributor will scan the web for violations, and noted the founders are ex-Yahooligans.
Did a quick look at Attributor and they seem to be on the Yahoo backbone which is interesing.
host attributor.comDidn't notice anything obvious crawling from that range in my blocked bots log but it's possible I let them slide because they are within the Yahoo/Inktomi range, will need to check that out.
attributor.com has address 18.104.22.168
attributor.com has address 22.214.171.124
attributor.com has address 126.96.36.199
attributor.com has address 188.8.131.52
attributor.com has address 184.108.40.206
attributor.com has address 220.127.116.11
18.104.22.168.in-addr.arpa domain name pointer p3w10.geo.re2.yahoo.com.
22.214.171.124.in-addr.arpa domain name pointer p3w11.geo.re2.yahoo.com.
126.96.36.199.in-addr.arpa domain name pointer p3w9.geo.re2.yahoo.com.
OrgName: Inktomi Corporation
Address: 701 First Ave
NetRange: 188.8.131.52 - 184.108.40.206
However, the WSJ article did mention that they have "...begun testing a system to scan the billions of pages on the Web..." and that "The company says it will have over 10 billion Web pages in its index before the end of this month." which I find hard to believe they crawled on their own completely unnoticed unless they are sharing Yahoo's cache.
No clue at the moment, but keep an eye out for whatever this is.
Let the Yahoo IP address hysteria start in 5... 4... 3... 2....