This is not blogging, but you could look at it being somewhat similiar.
Blogging is mostly for ego-boo. Hubs are for both ego-boo and making money.
If you are interested in making money with HubPages, you need:
1) LOTS of Hubs (100 absolute minimum, many more better).
2) Hubs are commercial (product or money making related).
3) Hubs have many links from outside HubPages.
See my profile and look for the Courtney link for more details.