As a example of what can be done about it here are a few easy steps.
Emails and phone calls are often ignored. If however you can appeal to the domain registrar's and hosting companies' self interests they may be willing to help you.
For example we can use the case of Sam's Choice.
Seems the folks at rotteneggs.com do not choose to do anything about lp101 material being stolen.
We can try to use the domain registrar and hosting company to get the webmasters attention.
If that is ignored, hosting companies have been known to pull the plug on sites that do not respond to complaints of copyright violation.
Samspade, (free utility at samspade.org)a net utility tells us that the domain rotteneggs.com was registered by
Boktor, Monir
ja4r67zb8m5@networksolutionsprivateregistration.com
ATTN: ROTTENEGGS.COM
c/o Network Solutions
P.O. Box 447
Herndon, VA 20172-0447
570-708-8780
Perhaps an appropriate email to dear ol' Monir via his Domain folks email might get his attention.

ja4r67zb8m5@networksolutionsprivateregistration.com
Then again maybe appealing directly to his domain registrar might get some action. They are at
Network Solutions, LLC
email: nocsupervisor@networksolutions.com
Network Solutions LLC
13861 Sunrise Valley Drive, Suite 300
HERNDON, VA 20171
US
570-708-8788 fax: 703-668-5817
SamSpade also tells us that rotteneggs.com resolves to
an ip of 216.240.150.25
So rotteneggs.com appears to be hosted by the folks at
OrgName: ATMLINK, INC.
OrgID: ATMLIN
Address: 600 W. 7th Street
Address: Suite 360
City: Los Angeles
StateProv: CA
PostalCode: 90017
Country: US
Their abuse info is:
OrgAbuseHandle: NOC1610-ARIN
OrgAbuseName: Network Operations Center
OrgAbusePhone: +1-213-627-1937
OrgAbuseEmail: noc@atmlinkinc.com
Their techie is listed as:
OrgNOCHandle: KJO26-ARIN
OrgNOCName: Joostens, Ken
OrgNOCPhone: +1-213-627-1937
OrgNOCEmail: ken@calpop.com
Emails to noc@atmlinkinc.com and/or ken@calpop.com may also rattle a few cages.
It seems Monhir is not always the nicest guy. Who knows what is true or not but for a laff at the goings on at rotteneggs.com check out
http://www.rotteneggs.com/r3/show/se/178152.html
I do hope no one would be as nasty as to google Monhir and call him on the phone directly.

OF course getting a message to the webmaster and contacting his domain registrar / hosting company may not do anything. but... its easy, free and at least ya can feel you did something.
Would it help if every lp101 user called and emailed ?

Pressure tactics to enlist the co-operation of the hosting companies have sometimes been effective. But ...... keep it legal.