Shared Reviews will stop paying members revenue from the end of September onwards. They put up an announcement in the forums saying that they have been having funding problems and as of September 2008, they will be putting the revenue-sharing model on hold. They have promised that they will still any outstanding amount that are owed to writers. The link to their forum announcement
As Shared Reviews will be putting writers on hold indefinitely, I'll be taking Shared Reviews off my list for the time being.