We plan to take our kids to the planetarium. Hope you had fun in Chicago, my kind of town.

Yeah, to answer your questions, AdSense is the code we load onto our blogs (either Blogger, WordPress or other sites) that lets advertisers run ads on our blogs and we get paid when people click on those links.

Adwords are ads that you can buy that will show up either on other websites and/or the Google search engine to the right-hand side when people search for the search terms that you big on in Adwords — so yes, it cost money to buy these ads to bring traffic to your website.

Read up all you can about Adwords if you ever decide to do that so you won’t waste money like I’ve done with that in the past.