I'm not Jim but i'll answer anyway.
A problem with creating linkwheels using specific services or sites such as Squidoo is that they quite often change the way accounts is created. Just enough to break software such as SEN*X* and that's why SEN*X* needs to be updated..... all..... the.... time.
In short:
If Jim added sites that needed signups all his time would, in an instant, become all about updating NHS to cater for changes for those sites and NHS.
It's much smarter to create functions that create links that work for multiple sites (such as WP-powered blogs). That way one can get many links without catering to individual sites. It's sort of what NHS and other tools like SB do.
However he probably could do link schemes, not just with a lot of Web 2.0 properties:
Link 3 > Link 2 > PAGE-WITH-URL-TO-MONEYSITE (previously posted by NHS)
I've written more about this here:
viewtopic.php?f=5&t=331If you still have the need to create properties and post articles etc i would recommend signing up to some VPS that offers SEN*X* such as bhvps.