User Agents

I filter my ads based on whether or not the visitor is using a desktop or mobile device and thought I'd share I don't use the entire user agent string but rather if the user agent contains a specific element.

Mobile
-------
Android
armv5tel
armv6l
AvantGo
Blackberry
Blazer
BOLT
BREW
Browser/Teleca
DDIPOCKET
Dolfin
Doris
Dorothy
EPOC
EudoraWeb
Fennec
GoBrowser
HTC
IEMobile
iPhone
iPod
Iris
iTunes
LGE
Maemo
MIB
midori
Minimo
Mobile Safari
MobileExplorer
MobileSafari
myTouch
NetFront
netfront
Nextreaming
Nexus One
Nexus S
Nintendo 3DS
Nokia
Obigo
Opera Mini
Palm
PalmOS
PalmSource
PIE
PlayStation Portable
Plucker
POLARIS
portalmmm
ReqwirelessWeb
SAGEM
SEC
SEMC-Browser
Skyfire
SmartPhone
Sprint
Symbian
SymbianOS
SymbOS
tear
TeaShark
Teleca
T-Mobile
UC Browser
UCBrowser
UP.Browser
uZardWeb
Vodafone
WAP Browser
webOS
Windows CE
Xiino
ZuneWP7

Tablets
--------
A43
A500
A501
armv7l
hpwOS
iPad
Kindle
Media Center PC
Nexus 7
Nintendo Wii
nook
NXM736
Opera Mobi
Opera Tablet
PlayBook
PLAYSTATION
Silk
Tablet
U0101HA

Spiders
--------
Googlebot
Googlebot-Image
Googlebot-Mobile
AdsBot-Google
bingbot
YandexBot
FacebookExternalHit
YodaoBot
Ezooms
MJ12bot
MSNBot
SEOENGBot
Baiduspider
Jyxobot
Sosospider
Exabot
ia_archiver
R6 bot
SeznamBot
80legs
BacklinkCrawler
Infohelfer
AddThis.com
oBot
NaverBot
Woko
HuaweiSymantecSpider
Sogou
AhrefsBot
TurnitinBot
findlinks
SEOkicks-Robot
Yahoo!
CareerBot
proximic
Strokebot
IntegromeDB
Nuhk
ChangeDetection
MetaJobBot
sistrix
Wotbox
Butterfly
magpie-crawler
spbot
CompSpyBot
archive.org_bot
discoverybot
ShopWiki
AcoonBot
BlogPulse
Yahoo! JAPAN
FlipboardProxy
Updownerbot
UnisterBot
UASlinkChecker
Spinn3r
ShowyouBot
OpenindexSpider
ichiro
linkdex.com
MeMoNewsBot
ProCogBot
Daumoa
drupact
psbot
netEstate Crawler
PagePeeker
TinEye
Plukkie
WBSearchBot
Najdi.si
WillyBot
peerindex
Nigma.ru
Job Roboter Spider
SemrushBot
Pixray-Seeker
YoudaoBot
coccoc
aiHitBot
Blekkobot
ZumBot
MLBot
WebNL
Crawler4j
Aboundexbot
Semager
Qualidator.com Bot
rogerbot
Netseer
MIA Bot
Eurobot
DripfeedBot
search.KumKie.com
webinatorbot
Whoismindbot
Bad-Neighborhood
Hailoobot
yacybot
bot-pge.chlooe.com
akula
GrapeshotCrawler
trendictionbot
MetamojiCrawler
thumbshots-de-Bot
Page2RSS
EasyBib AutoCite
suggybot
wsAnalyzer
YioopBot
NerdByNature.Bot
Browsershots
EventGuruBot
quickobot
iCjobs
FyberSpider
BDFetch
gonzo
bixo
CCBot
Zookabot
bnf.fr_bot
UptimeRobot
Speedy
PaperLiBot
Influencebot
MSRBOT
KeywordDensityRobot
VoilaBot
SpiderLing
HomeTags
heritrix
Ronzoobot
MojeekBot
RyzeCrawler
Mail.Ru
ScoutJet
Twikle
NextGenSearchBot
webmastercoffee
SWEBot
RADaR-Bot
Gigabot
DCPbot
woriobot
Castabot
LinkAider
percbotspider
WeSEE:Search
CatchBot
imbot
EdisterBot
WASALive-Bot
Accelobot
FlightDeckReportsBot
PostPost
factbot
Panscient web crawler
Setoozbot
biwec
JikeSpider
SBSearch
GarlikCrawler
Search17Bot
Lijit
MetaGeneratorCrawler
Robots_Tester
JUST-CRAWLER
Apercite
pmoz.info ODP link checker
LemurWebCrawler
Covario-IDS
Thumbshots.ru
Holmes
RankurBot
DotBot
envolk
ptd-crawler
Steeler
Ask Jeeves/Teoma
LexxeBot
adressendeutschland.de
StackRambler
Abrave Spider
EvriNid
arachnode.net
CamontSpider
wikiwix-bot
Nymesis
trendictionbot
Sitedomain-Bot
SEODat
SygolBot
UnwindFetchor
Snapbot
OpenCalaisSemanticProxy
ZookaBot
CligooRobot
cityreview
nworm
AboutUsBot
Falconsbot
ICC-Crawler
Qirina Hurdler
SBIder
TwengaBot
Dot TK - spider
EuripBot
ParchBot
Peew
AntBot
YRSpider
Urlfilebot (Urlbot)
Gaisbot
WatchMouse
FacebookExternalHit
Tagoobot
Motoricerca-Robots.txt-Checker
WebWatch/Robot_txtChecker
bixolabs
urlfan-bot
Vagabondo
StatoolsBot
page_verifier
SSLBot
SAI Crawler
DomainDB
LinkWalker
WMCAI_robot
voyager
copyright sheriff
Ocelli
Twiceler
amibot
abby
NetResearchServer
VideoSurf_bot
XML Sitemaps Generator
BlinkaCrawler
nodestackbot
bitlybot
Pompos
taptubot
BabalooSpider
Yaanb
Girafabot
livedoor ScreenShot
eCairn-Grabber
FauBot
Toread-Crawler
Setoozbot
MetaURI
L.webis
Web-sniffer
FairShare
Ruky-Roboter
ThumbShots-Bot
BotOnParade
Amagit.COM
HatenaScreenshot
HolmesBot
dotSemantic
Karneval-Bot
HostTracker.com
AportWorm
XmarksFetch
FeedFinder/bloggz.se
CorpusCrawler
Willow Internet Crawler
OrgbyBot
GingerCrawler
pingdom.com_bot
Nutch
baypup
Linguee Bot
Mp3Bot
192.comAgent
Surphace Scout
WikioFeedBot
Szukacz
DBLBot
Thumbnail.CZ robot
Qseero
LinguaBot
GurujiBot
Charlotte
50.nu
SanszBot
moba-crawler
HeartRails_Capture
SurveyBot
MnoGoSearch
smart.apnoti.com Robot
Topicbot
JadynAveBot
OsObot
WebImages
WinWebBot
Scooter
Scarlett
GOFORITBOT
DKIMRepBot
Yanga
DNS-Digger-Explorer
Robozilla
YowedoBot
botmobi
Fooooo_Web_Video_Crawl
UptimeDog
^Nail
Metaspinner/0.01
Touche
RSSMicro.com RSS/Atom Feed Robot
SniffRSS
Kalooga
FeedCatBot
WebRankSpider
Flatland Industries Web Spider
DealGates Bot
Link Valet Online
Shelob
Technoratibot
Flocke bot
FollowSite Bot
Visbot

care to explain in a little bit more detail?

I realized after posting this isn't really seo related. If you use an ad server like openx you can set up delivery limitations based on user agent.