We are running our main domain as a WordPress install from past 3 years and were adding sub-domains as seperate WordPress installs. With the time, we thought that it would be a better idea to have our main domain as a MultiSite and manage other sub-domains as its child sites.
But the question is - Is it worth? What would happen to the links? What about the SEO that have build up in three years? Is there anything to worry about?
If anyone of you can answer this and also - What needs to be done to move an already running site to a MultiSite interface? Thanks a ton, in advance.