Msg#: 3508143 posted 2:04 pm on Nov 19, 2007 (gmt 0)
LWP is a well-known perl library (and perl module and and lwp-request which is a simple command line user agent). it could be just about anything - a homemade bot or custom browser, somebody running a script - it's a very generic tool.
Msg#: 3508143 posted 1:43 am on Nov 20, 2007 (gmt 0)
It could be a proxy server, which may or may not be malicious, but some are known to zap your pages in the SERPs if they aren't handled correctly - IIRC they can be considered duplicate content by Google and end up getting the better ranking. There was a whole thread here concerning this problem, if this is the case for you its worth a read.