Last night I installed the insight plugin on my site and started posting an outbound link at the end of each article to an authority in my niche on the topic. And I had a couple stupid questions: 1. Obviously some of the keywords are very closely related so I have more than one article linking to the same wikipedia page, anything wrong with this? 2. Do I just want to stick to one authority site i'm linking to, such as wikipedia, or is it better to have many different ones?