Diffen is a comparison engine that lets you pit any two things against each other: affect vs. effect, 401(k) vs. IRA, cheddar ...

MetLife’s new logo has some seeing double. Diffen, a Wikipedia-like Web site that makes comparisons between issues and products, is accusing the largest US insurance company of ripping it off. MetLife ...

Practice Profile: Diffen's practice primarily focuses on renewable energy, with 17 years of experience in the renewables business. Leveraging her previous experience as a utility-scale wind power ...