Earlier this week Google has announced that they will use HTTPS as a ranking signal for the Page Rank.
A lot of people on Hacker News and Twitter were annoyed (even upstet for some) by that decision. I understand some of the concern, but I don't think they are legitimate:
Yes, most SSL certs are not free. But hosting a website has also a cost.
However, certificates are not always expensive. You can get one for $16 with Gandi.
Yes, there is probably additional cost. You'll need the technical knowledge on how to set up the certificate. But it's the same for running a web site. If you don't know how to do it, you'll need someone to do it for you.
There's an opportunity for hosting companies to compete on this, and make it easier and cheaper for small business and individual to run a web site with TLS.
The Page Rank is already secret, no one know how important having TLS will impact the ranking.
Yes, it matters even for a "content only" site. How can you trust the content was not altered otherwise ?
This decision impact business more than anyone else. If you're worried that your own personal blog is going to be impacted, I don't want to be mean, but I doubt this will have a huge impact for you.
Google won't stop ranking you because you don't have TLS.
I really believe this is a first small step in the right direction. Plain HTTP should die at this point.