SOPA Act

However, from what I'm seeing from that last article, it isn't just specific information...

"every single visited website" is rather specific information. It doesn't include what was done there, nor does it include far more personal things like the contents of every email, IM, IRC and similar you should engage in or every NNTP article you read.

Is the "preservation" period still only 90 days, or was it increased to the full year with this bill?

The bill just set a default standard for that degree of minimum info they had to retain for 12 months.
The 90 day preservation of full data is still in effect. Just think of it as tiers of data, once it passes the 90 days they drop to the more vague info, once it passes a year they can drop it completely.