David Sifry, of Technorati, has updated his latest numbers for blog growth, foregrounding the problem of fake blog/spam blog (splog) growth as well. Key observations:

• Tracked weblogs continue to double every 5 months (a contstant trend)
• 2 to 8 percent of new blogs are spam blogs
• Despite lots of chatter among high profile bloggers, he says the data don’t support that we are having a worse spam attack now than in previous rounds

Meanwhile, Chris Pirillo, Mark Cuban, Matt Haughey, Jeff Jarvis and Tim Bray scream about the spam blog problem this weekend. We monitor blogs for several clients, and spam blogs have certainly made our work less efficient and as effective the past week or so.

Technorati Tags: blogs, chris pirillo, david sifry, jeff jarvis, mark cuban, matt haughey, splog