What many may come to seem unnecessary or excessive, for some others can be very helpful and this idea is well aware of Google, and I can notice in Google Weddings.
Google Weddings is a website dedicated to weddings. That is, not having a dedicated wedding planner for each couple, but if you have tools and indications of how you can use Google services for planning your wedding.
The advice and information ranging from how to use Google Docs to create the guest list, Google Sites to create a page for your wedding, how to use Picnik to create invitations, etc, etc.
Of course we're talking about free services and therefore the results are not as professional as possible, we must keep this in mind, but if more than one well can serve you all this information. Link
