Who is this?

Are these SE spiders?

[Dumpy]

Gulliver/1.3
LEIA/2.90
user49.davesengine.com
ia_archiver
libwww-perl
DIIbot
geckobot
ru-robot
Mata Hari
EmailSiphon
logikabot
zzZ
Microsoft URL Control - 6.00.8169
WhizBang! Lab
oBot ((compatible;Win32))
PhotoRecall
webbandit
NationalDirectory-WebSpider
NationalDirectory-SuperSpider
lwp-trivial
FinancialFind Link Verification
Openfind Robot
PJspider
SiteSnagger
SurfWalker
Mercator-1.0
Spider
RealNamesBot
Excalibur Internet Spider V6.5.4
ZyBorg
xyro_([e-mail])

[littleman]

Well Dumpy,
To give you an explanation for each one of those would take all day. So instead I'll point you here [info.webcrawler.com]

You'll find a lot (not all) of your answers there. Others are personal bots or the module bots for scripting language utilities. A couple you have there are new and you are going to have to do some digging to get the scoop on. A couple of them are site rippers designed to steal content or emails.

xyro_([e-mail]) has ben catching my eye lately - they seem to be crawling inktomi results You could read about them here [inria.fr] . I'm not sure if anything is going to come from all their crawling.

added---
Oh, btw I still do not know what zzZ is.

[NFFC]

>Oh, btw I still do not know what zzZ is

Probably webcrawler:)

[Brett_Tabke]

Ones I know off the top:

northern light Gulliver/1.3
a personal bot: LEIA/2.90
nobody: user49.davesengine.com
archive.org: ia_archiver
nobody using perl: libwww-perl
email raider: EmailSiphon
altavista/digital research spider: Mercator-1.0

[webguy]

Here are a few more:

WhizBang! Lab
[whizbang.com...]
Web page info extraction software

Openfind Robot/1.1A2
[openfind.com.tw...]
Taiwan search engine

RealNamesBot/1.0
[realnames.com...]
Internet keywords company

Excalibur Internet Spider V6.5.4
[excalib.com...]
Excalibur Internet Spider (Spider for hire)

Edited by: webguy

[engine]

NFFC LOL - I'd expect a lot more zzzzzz than that!