Ancestry UK have just announced they are offering free access to the 1911 England & Wales Census from tonite until 14th October, see this link.

http://www.ancestry.co.uk/1911census?o_xid=56535&o_lid=56535&o_sch=Email

This appears to be another genuine offer without strings attached, altho' you will need to signup by email nothing else should be necessary and certainly no payment should be asked-for. My own experience of such offers is all good, I receive occasional informative newsletters and warnings of offers such as this, but never any spam or promo emails. The website also allows you to plot family trees and gain (and add) usefull info including the free-to-access 1881 Census and FreeBMD data, even if you're not a paid subscriber. There are of course other websites that may well allow this.

Happy Hunting, Jeff.