I would like to be updating it at least twice a day but recently it has been my birthday etc. so haven't been able to update it. David
For good return, you need to update it once a day at least. But you also need to link with other blogs. It takes a bit of time b4 you are noticed so you need patience. FFMG
I update it once in two days or so...some kind of college exams running here, so couldn't raise the frequency..bt hope to catch twice or thrice a days soon...
3-4 times per week can be sufficient if your blog contains relevant information, lots of links, and a decent amount of traffic. One of my auto blogs is PR4 and I only update it a few times per week.