AppleInsider noted today that the entry-level white MacBook’s supply has been slowly fading away. On AppleInsider’s Mac Pricing Guide there is a list of many Mac resellers that carry the latest white MacBook, and most are sold out of only this model. Some of the larger resellers on the list include Amazon, MacConnection, On Sale and J&R. AppleInsider has not yet received confirmation that a launch is imminent, but it is rather obvious as the stock is running out quickly. Expect the update to include a spec boost, Thunderbolt port, and possibly even a price change. The refresh should take place after the Lion debut, which is sometime in July—Apple did not specify a date.