Wordpress is rapidly becoming the most used CMS on the Internet, it has a great variety of uses as well. It started out as just been software for a Web Blog, but there are so many plug ins and themes now that you can have a fully functional Job board of photography website. what you do need though is a good quality wordpress hosting otherwise you could be up the creek without a paddle, you could easily have a slow loading blog or run out of web space quickly.
Whether your looking for a simple blog to post on day to day, or run a job board on with minimal interaction the wordpress is going to be the software for you. You need very little knowledge to run or even use wordpress and within a few hours you should of mastered the basics