Here is a review of Online Wills to include other necessary legal instruments. For some, these tools are appropriate, but we generally advise seeing an estate lawyer to create these documents if you have complexities or need to maximize federal or state estate or death taxes.
This is a WSJ article. Often the WSJ does not allow direct links to their articles. However, if you search the tile "Before It's Too Late: A Test Of Online Wills" you can find and access the article.