I have experience editing two tech blogs, AndroidGuys and GadgtSpot. I'll be happy to edit whatever you want for around $8/1,000 words. However, if you wish for me to edit and make sure that your content is factually correct, I will require $12 for every 1,000 words. Otherwise, I will only be checking to make sure that the written words make sense and are grammatically correct. My rates are completely negotiable dependent on how well the material was written in the first place and how quickly you want me to finish the edits.