Online Geneology Sites

I have joined a couple of online genealogy sites to continue building on our family genealogy. I know that there are a lot of people in our family that are interested in our family genealogy, so any additional information you can add would be greatly appreciated. I am on MyHeritage.com and Ancestry.com. I lost some of the information that I had already collected during the transition from my desktop computer to my laptop so I am trying to update the information.