I would urge everyone to sign the petition in defence of marriage; however, some of the arguments put forward are somewhat flakey. So I would also urge everyone to read Joseph Shaw's comments on them, on his LMS Chairman blog.
For a considered account of marriage, have a look at James Preece's latest: a very good summary indeed.
Plutarch on post truth - And why should any one be astonished that men of wanton life lose no occasion for offering up sacrifices, as it were, of contumelious abuse ...
2 hours ago