Before Google emerged, it was often hard to find relevant links in search engines. So many people used directory sites to find relevant information. Google was successful partly for attacking the search engine spam problem.
Matt Cutts leads the Google antispam efforts and blogs regularly about best practices for developing websites. Also Cutts hosts numerous videos on YouTube regarding search engine optimization. These are the techniques that will help your website have better placement in search engines.
In this video Matt responds to a question about sitemaps and goes on to talk about the qualities that define a good website. These qualities should exist in your church or ministry website.
Matt suggests using a text browser to check out your website. If you cannot find all of your articles on your website with a text browser, then Google might not find all of your pages either.