Why is my traffic on Squidoo declining? Should I move to Hubpages?

Google does not tell us how they rank sites. But there are many people who are good at guessing. In 2008, Squidoo and Hubpages were swamped with people who used them as link-generating sites. Those pages had no purpose but to post links to sites that wanted to increase their ranking (SEO). By 2010 they both seemed to have lost favor with the search engines. Your experience seems to have been better than most. Don't switch.

Squidoo makes use of tags to categorize the consumer created pages, or 'lenses' as they are called. every time a consumer creates a Squidoo lens, tags must additionally be created for each lens. all the consumer-generated lenses are linked to tag pages, that are in turn linked back to all the lenses that use an identical tag. that's how computerized hyperlinks are generated for the lens you create in Squidoo. Your Squidoo lens' PageRank will strengthen using hyperlinks it immediately gets from the tag pages! that's a straight forward fact that hyperlinks from authority websites are greater useful than hyperlinks from non-authority websites. Squidoo is one such authority web site, and helps you gain an greater score. Authority websites are in simple terms credible online materials on a given subject remember, which produce different web content linking to them on the flexibility of that credibility. whilst seek engines word hyperlinks from an expert web site like Squidoo, the credibility of your man or woman web site will strengthen. that's what makes a Squidoo lens so useful for springing up high quality hyperlinks.

It is declining somewhat, and if it declines, then so will the results that are displayed in the SERP's. If your lenses are not showing as high as they used to, then it will obviously effect the traffic, but I doubt there will be much you can do to improve their individual ranking.