how to populate fields on several web pages with same layout

I want to advertise my business in various cities. So I am accessing a web page that has many links. Each link gets you to another city. The page layout is the same. How can  I populate the fields  ( email address , main body , location ) without doing copy paste on every field. It is time consuming and I am sure there is got to be a way to populate these fields automatically.
any advice would be appreciated. I am attaching screenshot of how a page looks like.
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Phil DavidsonCommented:
You could use Roboform, Dashline, or Autofill (if you use Firefox).  Opera and Safari have built-in methods.  You can evaluate the options in more detail with this link:

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c_hocklandAuthor Commented:
Thank you Phil , this is exactly what I was going after.
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