OK I've fixed the Niche Laboratory so that logged in users' jobs are being saved. The problem was due to the amount of data being gathered by the Niche Laboratory being larger than the size of the database column... oops.
Anyway, if you now log in your jobs are automatically saved so you can go back to them as your niche site grows and you want to find more keywords and phrases to write about.
More threads for you to read and post comments on.
Love Facts and Figures? Here's some data about Niche Laboratory usage.