If you like to create your own share button on your website, you can use this script....
Hope this usefull for you...
http://www.facebook.com/share.php?u=[URL]&title=[TITLE]
http://twitter.com/home?status=[TITLE]+[URL]
Digg
http://www.digg.com/submit?phase=2&url=[URL]&title=[TITLE]
StumbleUpon
http://www.stumbleupon.com/submit?url=[URL]&title=[TITLE]
Delicious
http://del.icio.us/post?url=[URL]&title=[TITLE]]¬es=[DESCRIPTION]
Technorati
http://technorati.com/faves?add=[URL]&title=[TITLE]
http://www.reddit.com/submit?url=[URL]&title=[TITLE]
Tumblr
http://www.tumblr.com/share?v=3&u=[URL]&t=[TITLE]
http://www.linkedin.com/shareArticle?mini=true&url=[URL]&title=[TITLE]&source=[SOURCE/DOMAIN]