Depends on what you mean by "control a web site". A FileMaker database can be published to the web and you can export data from FileMaker to be used by other web software to present pages of info to web users. Neither approach is a simple thing to do however, be prepared to read up on the subject before taking on such a project.
You'll also need to have a good understanding of how your starter solution works so that you can properly evaluate what changes will need to be made before it can be published to the web.
I want it to control my blog. so it can be organized. However I will study more on the started solution to see what I can do with it.