http://www.helium.com/knowledge/208030-impact-of-spelling-errors-on-helium-articles.xml Helium.com > Writing & Rating at Helium > How spelling errors impact your writing scores at Helium en-us Copyright Helium.com Tue, 20 Jan 2009 03:06:57 GMT Tue, 20 Jan 2009 03:06:57 GMT