I think I want to keep using goodreads for now. However, it only syncs one way and I'm finding booklikes to be hard to use. It's occured to me that reimporting my books every month or so would lead to duplicates. It finally dawned on me that there is a solution of sorts. Everymonth or so, just redo the export from goodreads. But instead of importing everything, just sort by date added and import only those. I'm a little slow on the uptake sometimes so i appologize if this was glaringingly obvious.
One think I really like about Booklikes, is that it puts in your link to amazon associates account in case people are part of that. That is totally awesome.