JS_Harris - 8:06 pm on Aug 13, 2013 (gmt 0)
When I link to good sites I don't use nofollow tags and I am fairly sure Google ignores nofollow tags when they point to sites/pages Google already trusts.
As for anchor text I link to use the domain name. e.g. the clickable text would be 'example.com'. It's not always possible to do that but when it can be done I think it should be because it leaves no doubt that you want to link to that domain and it leaves no doubt as to where a visitor will end up if they click.