Below are the Google Analytic result that I obtain today, with the current result, it only shows 4th march as final, and for 5th march, the result are not yet final, possible will have more.
I was too excited to show you all, the power of stumbleupon.com, and the power of the stumble exchange program.
2 days ago, I was writing about DreamHost web hosting, I have discover this topic, and submit to the Piqq.us for the stumble exchange… I make about 10 stumble exchange first, after saw all the stumble finish(within and hour), I submit another 10 stumble, all done it within 5 hours after discover.
As per stumbleUdon website mention
For maximum results, the URL must be new to StumbleUpon.
Which means: it was “discovered” within the last few hours and has not received any stumbles.
A fresh URL with 20 stumbles will perform better than an old URL with 50 stumbles.
I have follow their algorithms, and gain the above traffic result. But this traffic does mean will be permanent, 
if your article are not good enough, and no other visitor stumble it, Possiblilty your article to be appear are less when million of user click 
out there.
My name is Calvyn,from PENANG, an IT Engineer, Malaysia LIFE tech blogger. I am an IT Engineer who blog about my LIFE working Experience, such as Technology, Computing, Networking and also my hobbies, Photography.
By calvyn on Mar 7, 2008 | Reply
just for update, the final amountfor 5th Mar is 475
By Wing Loon on Mar 7, 2008 | Reply
Awesome… I will follow your foot step,
By Kitkat on Mar 7, 2008 | Reply
Good. Can we make friends in Stumbleupon?
By Mitz on Mar 7, 2008 | Reply
stumble algorithm is always better then digg. Digg have no traffic at all
By vickie on Mar 7, 2008 | Reply
erm.. your article there wrote April not March -.-
erm.. Seems like StumbleUpon drive traffics to your blog.. congratz
By albos on Mar 9, 2008 | Reply
you can h ttp://piqqus.com/signup.php?r=4730&c=f76w6u9n7r47d2xxxxxx
to join piqqus.com that calvyn is talking about
Calvyn:”HEY DUDE… YOU COME MY TERRITORY GRAB BUSINESS… NO STEADY LA”
don’t be so stupid!!!
unethical behavior are not allow on Internet
By calvyn on Mar 9, 2008 | Reply
Kitkat >
Sure, add me at Calvynlee.StumbleUpon.com
vickie >
Ops, my mistake, thank for correction
By Ichitaka on Mar 9, 2008 | Reply
wow, u were right, DAP really win a lot… hope they do a better job with power now XD
By Jayce on Mar 11, 2008 | Reply
I tried StumbleUpon last time. It did bring some traffic but you need to do a lot of work.
I did not SU anymore. I use my time to write better post.
By calvyn on Mar 11, 2008 | Reply
Ichitaka >
Haha, you comment in the wrong topic ooo
Jayce >
Ya, you are right, write a beter content. I use SU to show my content to the whole world… not bad with using stumble exchange service, attract a lot traffic too… you should have a try too…
By Syahid A. on Mar 13, 2008 | Reply
I’ve experienced good traffic from StumbleUpon too. The effect will be much better if a top Stumbler stumbled your page.
By Shaan on May 1, 2008 | Reply
I don’t use SU or Digg much for niche blogs,but for some offbeat stuffs they are ok.
By calvyn on May 1, 2008 | Reply
Shaan >
are you sure? niche topic only have people interested to read, offbeat stuffs have people interested?