Why are these cookies on my computer?

Recently I was advised to delete all cookies, amongst other things, as this would speed up my slow computer. I started to wonder what cookies were being placed on my computer and how much they slow my computer down.

When I log on cookies from various companies are placed on my computer. These are not just from Accounting Web, but from others as well. They are :-

www.sitestat.com
www.doubleclick.net
www.sift.co.uk
www.atdmt.com

I thought that Accounting Web only placed their own cookies on my computer. Why are these here?
David Honneyman

Comments
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Caveat Ad-Aware ...

Anonymous |

Cookie Breakdown

Gareth Beck |
Gareth Beck's picture

Advertising cookies ...

AnonymousUser |

.

leoludwig |
leoludwig's picture

Look at AdWare by Lavasoft ...

Anonymous |

Big Brother, by any other name

Richard Willis |
Richard Willis's picture