I have three different domains with same content on them. 2 domains are old and 1, the new one has all the SEO/SEM done on it. It has a good PR and traffic. My question is - should I redirect my old domains to my new domain or is it okay to leave them as it is? what would be the benefits of redirecting?
do the old domains already have high results in google? meaning since they're old they're probably indexed in google if you redirect them, you lose that "spot" in google. I would leave them be and just link from them to your new site.
Duplicate content can get you penalized. Duplicate content Next time do a search and check google webmasters guidelines
avoid duplicate content as much as possible redirects are better than leaving duplicate sites out there
The article that is cached first is the original article according to google. So, the other duplicate sites will get penalized sooner or later
Avoid having duplicate content on multiple sites. What good does it do to you? I would rather have one single site with a unique content and if you intend to develop the other 2 sites as well, find other fresh content for them. After that link them together and point to each other.
You don´t get penalized but your websites get not a high ranking in search engine. That means your websites cannot be found in the first 10 or more pages of search results. If you do not get any traffic through search engine then you can say good bye to your websites, because all we should do is getting real traffic.
If your old site has no traffic from google then no need to do anything, and if you go throgh redirect then use 301 permanent redirect to your new website. with 301 redirect google knows that page is permanently move to specific location.
It will be a waste of time if you will create different websites with same contents. Just concentrate on One website to avoid duplication
I suggest you keep only one domain and 301 redirect all other domains with the duplicate content to onedomain only. Having same content on different sites will bring no good.
You will get penalized for duplicated content. Since both sites are yours, better change it or else one of them will nor fare too well. All you need to do is just change the phrase used in those contents. The important information can still be the same.