I don't know about you but I just haven't got a clue half the time as to which corporation owns what part of the internet. So for your visual pleasure I've compiled a handy reference list. (plus i was a little bored)
Who owns what?
del.icio.us is owned by Yahoo!
Doubleclick is now owned by google
Myspace owned by News Corp. (parent company of Fox).
Last.fm was recently purchased by CBS for $280 million.
Flickr is owned by Yahoo!
Youtube is owned by Google
WAYN was bought by ITV for £120 million
Feedburner recently purchased by yahoo
Konfabulator and Winblinds both owned by Yahoo
Friend Reunited bought for £120 million by ITV
Skype is owned by Ebay purchased for $2.6 Billion, along with paypal of course for $1.5 billion
Blogger is owned by google
MyBlogLog owned by Yahoo!
So there you have it, if it's not owned by a massive company apparently it's not woth going too.