Success with Google AdWords (Doesn't Require a Degree)
NTEN
JANUARY 11, 2010
You get a bolded headline (25 characters), 2 lines of plain text (35 characters apiece) and a display URL (35 characters) to try to convince folks to click through to your site. I don't know enough statistical analysis to tell you how many possible combinations you could work into AdWords, but I suspect it's a lot. Or should you. >
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