There's a couple of very good diary articles at the Internet Storm Cetnter (the second part published today) about how malware gets loaded onto PCs, including a whole host of sites hidden behind anonymous domain registration services. You'll note that Lycos is involved in this malware thing, through it's association with Addictive Technlogies.

The articles are:
http://isc.sans.org/diary.php?date=2004-07-23
http://isc.sans.org/diary.php?date=2004-08-23

Domains mentioned:
addictivetechnologies.net
f1organizer.com
lovemynet.com
default-homepage-network.com
addictivetechnologies.net
yahoogamez.com
smartbotpro.net
passthison.com

Co-hosted on servers listed above:
f1organizer.net
favorites1.com
favorites1.net
100topdownloads.net
addictivetechnologies.com
broadspring.com
freebiesareus.com
freebiesrus.com
giantfreebies.net
mindseti.com
mindsetinteractive.com
myprizes.net
netpalnow.com
vistainteractivemedia.com
vistainteractivemedia.net
xtreemfreebies.com
66.98.229.16
at-games.com
netpalgames.com

Addictive Technologies business partners (typically malware-friendly):
enconfidence.com
lycos.com (!!)
404search.com
spywarelabs.com
toprebates.com
abetterinternet.com
2020search.com
shopnav.com
shopathomeselect.com
sirsearch.com

Co-hosted on yahoogamez.com (which is where the malware trail started):
007arcadegames.com
2dplay.net
8thd.net
9qa.com
actionflash.net
addictinggames.org
addictingjokes.com
addictinglinks.com
adn100.com
aimbuddyicons.org
alexagames.com
animes100.com
animespin.com
arcadetown.us
best-debt-consolidation-company.net
biganime.net
britneyspears4u.com
buddyiconmania.com
car-accident-lawyer-attorney.net
cheap-web-hosting-unlimited.com
conference-calling-service.net
coolaimicons.net
coolbuddyicons.net
creativestudios.org
cvkn.com
cyberanonymous.net
db100.net
dbzrk.com
dojo100.net
dragongamez.net
free-online-games-4u.com
frostedx.com
hugeanime.com
illegalbuddyicons.com
kiddlegames.com
matrix100.net
mesothelioma-treatment-cancer.com
myshorturl.com
nemag.org
neman.net
nexusplanet.com
nlanime.com
nlnetwork.com
nolimit100.com
otakuland100.com
planetfreehost.com
planetzoog.com
pride100.com
roxygames.com
secureanonymous.net
secureprivacy.net
serragames.com
silvereffect.com
silverx.net
starlighthosting.com
supershocked.com
thematrix-movie.com
ultimate100.com
universalanonymous.com
unlimited100.com
womentop50.com
x2-movie.net
xgenplanet.com
xt100.net
xtbb.com
xtremebb.com
yahoogamez.com
zu9.net