SheToldMe.com for backlinks here. They are associated with another site by the same owner - Best Reviews (or something like that, I forget).
I prefer HubPages over Squidoo ... I think earning potential may be higher here... Here you can get up to 60% of adsense impressions.
The one advantage of Squidoo is that if you can't get an ebay affiliate link, you can still get ebay revenue there.
When I do search engine position tests I see Hub Pages tending to be naturally higher in the ranks that Squidoo though.