I just got my first starter going this week.
Here is the site I followed.http://www.io.com/~sjohn/sour.htm
I used King Arther organic flour and Gold Medal bread flour to try 2 starters at once to increase the odds in my favor.
I also used bottled water for both when feeding.
I left the containers open a few hours each day for the first 2 days near an open window.
I removed half of each starter and fed both each night 1/2 cup water and 1/2 cup flour.
I pored off any excess liquid each morning and stirred up the starters to incorporate air and redistribute any organisms.
It took about 4 days to see any action.
On the 7th day (today) it was very bubbly with about 3/4 on an inch of froth on top with a pleasant yeasty/bread aroma.
Since today is the 7th day, this is all I can tell you.
After consulting a trusted bread making friend, I plan to continue feeding starters for a couple more days or until I get about a 1 1/2 inch layer of froth to ensure starter is well populated. Then I will store in fridge and feed weekly.
The Gold Medal flour is giving me the best results. The King Arther is working, just not as well so far.