I'll start with a Limewire specific point and then ramble off-topic for this forum. In recent upgrades, the developers have capped the number of search hits returned. Gnutella has been experiencing serious traffic management problems and, this is one of the strategies to "improve" matters. Hence, you may be seeing fewer hits and, of those, more may be unresponsive. You could consider filtering out the LAN servants which would probably improve the percentage of positive connections achieved from the hosts returned. Now, invert this. Most people do not filter the servants and will see only a limited number of "real" hits for each search. Thus, the chances of your site's collection appearing are actually reduced.

As to your more general question, you are correct in your assumption that the majority of p2p clients in the USA are accessing the net from LANs. System administrators have been responding to the encouraging words of the RIAA by reducing the QoS on bandwidth allocation to their users. And the users have been observing several new trends in addition to the much-publicised litigation. School, college and university principals, and employers have begun to enforce more real anti-copyright theft policies on the ground. Spiders released by RIAA investigators are now roaming the net to detect large holdings of potentially illegal downloads and notifying educational institutes, large employers and ISPs of the addresses of offending sites. And ISPs have been sending out warning letters to those customers suspected of trafficking in illegal downloads.

While individuals were able to sit undisturbed on their machines, they could believe they were invulnerable. Now that they are receiving e-mail and written warnings, they understand that the pattern of behaviour, unchecked up to now, is under more direct attack and some grow cautious. Equally, some are rapidly devising some very amusing little packages to confuse the spiders and others are engaging in a dialogue with their ISPs on the lawfulness of the scanning of their "private" materials without a search warrant.

The number of people who exchange files ebb and flow in response to circumstances. I take no view on who is right or wrong in this latest battle over copyright. Reading some reports of the volumes of files held on some educational systems, I might be tempted to describe the abuse as excessive. Equally, the reaction of the entrenched commercial interests is obviously too uncompromising to be justified. Either a compromise will emerge (such as Apple's initiative in the USA) or there will be an armed truce. Whichever it is, the rest of the world can watch the activities of the RIAA with disinterest and you should find most of the material you want through patience.