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The only safe move here is to create amazing content for both blogs - but why have 2 blogs? Why double your effort when you could be using all the content to prop up the main site? Andy makes a very good point here.  If you have a good article about Brass Widgets on your website and you decide that you want to write a second Brass Widgets article to publish on another website, then you are going to publish a second article that will compete with you and take some of your traffic. Even if the articles are slightly different or very different they will still be "competing" - either at the short tail keyword level or the long tail keyword level.   The result will be damaging to your traffic.  The amount of damage will be proportional to the strength difference of your domains and  the diversity of keywords in the articles.  If the second domain is a lot more powerful than your own domain you could lose almost all of your traffic to the second website. I have a website that publishes only unique articles.  Some of those articles have been written by other people in my industry who have similar articles or entire websites about the topics that they gave me to publish.  I never asked any of these people to write an article for my website.  Every one of them came to me with an offer.  With content written by these other authors, my website frequently outranks their website for primary and secondary keyword of the industry.  They might have a website that is powerful for the topic, but I have a website that is authoritative in the industry.  It can be hard to predict who will win at different levels but my site now competes and brings in lots of traffic for topic areas where I have never written. Publishing on your own site, as Andy suggests, builds the strength of your site and does not invite potentially strong competitors into your keyword space.   There are benefits of sharing articles.  You get exposure as an "expert" on another website, which might have amazing traffic that includes visitors who will seek you out to do business.  You can often get a link on those websites that  will send lots of traffic to your website.  The best situation for all is if you simply want to get your message out to as many people as possible, but if there are competitive concerns then you must weigh the value of a link with the value of the exposure and the risk of a very strong competitor moving permanently into your space.