In a nutshell, SocialSpark, from what I gathered after reading what Andy Beard wrote, is a Advertiser Social Network that will allow Advertisers to choose blogs for their Advertisements base on real “blog power” and not on the superficial Page Rank. Quoted from Andy’s post,

Accountable Analytics - current methods for advertisers to present the viability of advertising on a particular blog basically… suck - you name it

* PageRank is worthless - you can have a site with a PageRank of 7 and almost no traffic, and at the same time have a PR3 blog that gets thousands of visitors a day.
* Alexa & Compete are easily gamed and are highly biased in many verticals such as web design, SEO and technology, and the sites people in those industries frequent.
* Quantcast would be useful… but very few sites include Quantcast code on their sites, even those who are marketing aware.

In view of this recent developments, many bloggers who does paid reviews and other form of Advertisements jumped with glee, with the opinion that finally someone has come forward to do justice to the tight slap that they got from Google recently. Indeed, I too felt good initially. but that good feeling was short lived.

Smaller Blogs Will Become Redundant.

If you look deep enough, you will realise that in future, getting Advertisers to choose your blog will be tougher than biting into a piece of leather unless you have a blog that has thousands and thousands of visitors daily.

At present, even if you have a blog with 0 page rank, you will still be able to write some low paying reviews that pays a nominal $5 per post. Speaking from a money making point of view, those who works hard enough makes a decent income from their blogs that has no Page Rank or visitors whatsoever. This has come under harsh criticisms from many quarters questioning the echticity of such blogs. This problem will be effectively dealt with once SocialSpark comes into play.

There is no joy for a small blog like this. No doubt, the release of the Google buckle that has been tightening by the day will be a relieve and the dependence on money making blogs on the vital Page Ranks does in a way augurs well for many, SocialSpark might also actually be killing those low traffic blogs faster than the Page Rank demotion that they faced earlier.

There are no indication at present as how many visitors a day is enough to please an advertiser to have your blogs do a simple review for them, but I think you don’t need to be a nuclear scientist to know the fact that it is of course, the more the better. This time around, it will be Advertisers that are really looking for blogs to advertise their products rather than wanting a Linkback.

Bearing this in mind, in the next few weeks, we can expect to see a flurry of activities from blogs finding ways to increase their readership base. The floodgates to the playing field has been opened, but how many will succeed in creating a readership base big enough to be on a level playing ground with the big boys?

Related

The Big Blog Hoax - Google Ends Page Rank.
Blogging For The Homemakers.
Ten Keywords That Guarantee You will Rank Number One In Google Serps.
Write Good Titles for your Blog Posts.
What has Links got to do with Page Ranks?
Google is Slapping Again!
Google is Stirring Again!
The Page Rank Fiasco.