Website IndexUniverse writes "ETFs 'Poaching' the Market", which discusses the possibility of a "money market ETF". It cites the recent filing of SSgA's SPDR S&P Commercial Paper ETF and the recent launch of WisdomTree's U.S. Current Income Fund (USY), but says, "None of these funds, however, will be able to call themselves actual money markets just yet." It quotes our Peter Crane, "Right now, ETFs are beginning to hover around the edges of money market mutual funds. But they're not the same thing as money market mutual funds. The seeming simplicity of maintaining a stable value is actually a formidable obstacle for the ETF industry." Also, see Crane Data's July 17 story, "SSgA Files to Launch SPDR SnP Commercial Paper, First Cash ETF", and see IndexFunds' other new article, "Money Market ETFs In Europe".