Here is list of 50 Social Bookmarking Websites . As i mention in my post “10 Steps for Getting Traffic/Hits from Social Bookmarking Sites” that Social Bookmarking Websites are good source for few thousand extra hits for a website.

30daytags
BlinkBits
BlogHop
BlogLot
BlogMarks
BlogMemes
BlogPulse
BmAccess
browsr
Fark
CiteULike
clipclip
clipmarks
Complore
Connectedy
Connotea
de.lirio.us
del.icio.us
digg
diigo
fantacular
Feedmarker
Feed Me Links
Furl
Gibeo
GoKoDo
Google Notebook
IceRocket
Kaboodle
linkaGoGo
linkfilter.net
linkroll
Listible
Lookmarks
ma.gnolia
Netvouz
Newsvine
openBM
RawSugar
reddit
Rojo
Rollyo
Scuttle
Shadows
Simpy
Sitetagger
Smarking
Spurl
StumbleUpon
taghop