text link with keyword or image link as sign?

[silverbytes]

I've seen many companies to add a little sign at bottom of developed sites and I wonder:

Is it better a small text link using a keyword as: "websites mycompany",or
just "mycompany" or just a nice gif of my company with a href....

What do you say experts?

[edit_g]

If I could choose I'd use something like "whatever key phrase I'm targeting - mycompany.com" and a nice little logo. Best of both worlds. But for search engines you're better off with just text instead of the picture.

<added> not an expert btw.