Find free scripts and tips that can help make this easier.
Optimize your site so it's easy to add programs and ads. Consider
using server side includes. Server side includes dynamically add
the header and footer files to your site. You can change just the
header file and voila all your ads change on all your pages.
An HTML editor like Dreamweaver lets you insert server side includes.
Make sure that your web hosting company supports them.
Of course you can also use one of the many database programs or web content management systems or even weblog software to build your site.
Choose an authoring method that works for you.
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