I received an email from FeedLinx support that FeedLinx is shutting down. It was not just one of the feed to email converters, you can use it to keep a track of your feed subscriptions across machines and aggregators. I had used it for sometime to synchronize across feed readers. I thought the concept was unique enough to have its own place. Not all valuable things can find money, but FeedLinx was quite useful when I was experimenting with feed readers.