Here’s a little trick you can use to make links from ning.com more valuable:
<a href="www.yoursite.com">Your Site Name</a>
in the ning.com editors, they automatically insert a ‘rel=”nofollow”‘ tag, so the link looks like this:
<a rel="nofollow" href="www.yoursite.com">Your Site Name</a>
This makes links from ning completely useless as far as search engine rankings. A nofollow link basically tells the search engines that the site the link is on doesn’t vouch for the value of the link in question. It makes the link seem about as relevant as spam.
Personally I like ‘ rel=”muse” ‘, or ‘ rel=”help” ‘ like so:
<a rel="muse" href="www.yoursite.com">Your Site Name</a>
but it doesn’t really matter, as long as it’s not “nofollow”, which is the kiss of death as far as link quality for ranking determinations on Google etc.
Here’s a list of all the official “rel=” values: existing rel values.
That’s all! Hope you find this useful.