I'm looking for a simple tool that I can use to manage some of my more frequently updated websites. They don't have a need for a full database driven system, just something that will allow for ...

Upload both files to your server. Whenever someone loads the main file, your sidebar content will appear where you placed the PHP include code as if there was only a single file.

I put together a bunch of file upload tutorials. Pick your technology and get uploading! Want client and server-side JavaScript? Upload files with Node.js Why not upload files with Apache Commons?