I was writing several articles today and I was wondering if it is alright to mention more than 1 link in the article (several links to different websites?)
Would this produce good results for both sites? Or is writing individual articles for each site better?
Yeah go for it , Wikipedia has million links on its pages and look at that site. If people come to your site and find links to good sites and find good information there more likely to remember your site.
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For my own blog posts and articles, I have more than one link just to build a good content and more traffic for my own backlinks. It's a great support like no other.
but take care... some PR and Article websites won't allow you to put more than a specific number of links in your articles. Take PRlog for example. They wont allow you to publish your release if you have more than three links per release...