
Some of the most useful tools that I use to add content to my squidoo lenses, whether they are content oriented or commerce, are the Mozilla Firefox extensions. As I am browsing the internet, for news or following great links, if I find something relevant to one of my lenses, I use that tool to place it in my lens.
You must have a link module for this to be useful to you, but if you don't you are given the option of creating a new one. Once you add your link, if you like it will publish your lens for you as soon as you've finished.
Be careful, though, because in this way I have published a number of lenses before their time!
Since great content and good links are all needed for good Google rankings, I suggest you try out the extension and see how you like it!