We recently talked in the chat about writing How-To's for the blog. In a similar vein to this question, it's entirely possible that a reader of the blog may not have the ability to complete a project safely.
We talked about adding disclaimers to the entry, having a few people review the entry for safety concerns, etc, but we were still concerned about liability. Does it make sense to add the legal link to the footer of the blog, like every stackexchange page? The Terms of Service seems to cover the legal ramifications from following the advice in a blog entry.