I would definitely agree with you Kenny. I'm definitely not saying that static websites don't bring back visitors nor valuable. I was just emphasizing that reasons to come back like interaction may heighten how frequently people visit.

Yes, Michael Hyatt is great on Twitter. I'm just not sure how much time he spends building his network beyond Twitter. Beth's chart includes developing communities online via things like FB fan page and Ning. Also, I wonder if he has others co-tweeting with him.

I personally spend about 15-20 hours a week on projects that need social media push. Also, I will periodically hire some people to manage some accounts. I simply guide and direct the strategy behind it.

As far as our church is concerned, we really haven't leveraged social media/networking too much for our ministry. Our objective for our site is to primarily share our resources and be a hub of information for our community. Our staff spends a few hours a week interacting people from our church at a personal level rather than as a representative of our ministry.

I suppose you could use some of these services, but for us, traffic is really driven by our ability to live openly online through our various platforms. I think building traffic towards a church site is definitely possible if a church is willing to put the time into nurturing an online community. Here's a link to a helpful chart of the level of time needed online to build community by Beth Kanter (@kanter).
http://beth.typepad.com/beths_blog/2008/10/how-mu...

Also, I think what helps is determining the objectives for why your site exists is vitally important. In other words, why would people visit your site anyway. The objectives for your site can help determine which platforms for exposure you should be a part of. If you only have a static website that solely communicates one-way like traditional marketing, you probably won't have too many repeat visitors.

There are definitely other ways to get people to your site (e.g., use of keywords, tags, "share this" links, etc.), but at the heart of this is your focus on why you exist online. I think some churches would get more traffic by simply using a blog format that encourages interaction than a static site.

Just some initial thoughts.