Charlene Li on Microsoft's new classified service 'Fremont' and why it will be better than Google Base: "First, a quick description of Fremont. It looks and acts like a classic online classifieds site. A list of linked categories is on the front page and users can browse or search through the listings. A key difference though is that the listings are turbo-charged – as the poster, you can control who can see them, from everyone to just a select group of people on your MSN Messenger buddy list. If you choose the latter, the next time one of your privileged buddies signs into Messenger, they’ll see a little alert that says you have a set of golf clubs for sale. The categories include the usual suspects – jobs, homes, apartments, cars, and one thing that caught my eye, tickets. ...So I look at Fremont and I see a really nice service shaping up. The classifieds interface is familiar – each category has the expected search fields (number of bedrooms in housing, make and ye