In the last few weeks we've notice a boost in our online authority which coincided with a new SSL certificate. Our site doesn't handle transactions, so there isn't a need for one. However, after looking into this further Google has updated its algorithm to boost SSL-encrypted sites in the search results.
It doesn't take long to arrange and now there are more reasons than ever to get it sorted. We arranged ours through Go Daddy.
More information on SSL and Google: