I noticed that some of my "Guests" were really undefined spiders, so I added them (and some others I've heard of) to the list.

Control Panel » Display Options » Who's Online:

DEFAULT LIST:
Quote
Alexa=ia_archiver
Altavista=Scooter
AllTheWeb=FAST-WebCrawler
Excite=ArchitextSpider
Google=Googlebot
Yahoo=Yahoo! Slurp
Inktomi=Slurp
MSN=MSNBOT

ADD:
Quote
Whois.sc=SurveyBot
Google-AdSense=Mediapartners-Google
TAMU.edu=IRLbot
InfoSeek=UltraSeek
InfoSeek=InfoSeek Sidewinder
Lycos=Lycos_Spider_(T-Rex)
ScrubTheWeb=Scrubby
Looksmart=MantraAgent
SingingFish=asterias
Ask.com=teoma_agent1

Of course if anyone feels ambitious, they could add many more of them laugh


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