Thing 6-Mashups

Mashups - what can I say except that my brain feels like mashed potatoes after thing 6. I did visit the App Garden and explored three of the mashups. I went to Trippermap which geotags your flickr photos; Barbershop which is a cool app for men to see different hairstyles and beards and such, but I couldn't find an equivalent one for women; and also Snaptweet, which allows you to post your photos to Flickr and tweet them simulataneously. Honestly, I don't really understand the concept of mashups, so I don't see myself using them at work or in my personal life. I like the idea of posting pictures for family and friends to see online, but am not really that comfortable putting them out there for the world to see.