(This started out as a blog comment for Sania’s post Facebook Killed Your Blog. I’m posting it here first.)
We share blogs with the whole world. So our blogs get lost in the noise, bolstering the need for a whole industry optimizing getting found in search engines. Its a concerted effort just get noticed. That’s because blog readers have to seek out blogs to follow, subscribe to the feed, and follow. Finding the best blogs to read is sometimes difficult and more from word of mouth than anything search engines provide.
Blogs also tend to have a lot of information to digest. Social networks have just a line or two with maybe a link to more information. Blog readers typically are designed around the idea of collecting all the posts and letting the user pick which to read. Social networks typically are designed around the idea of just showing recent posts and letting the users choose how far back in time to read.
As technologies lower the costs to express ideas (aka get easier), blogs will get left behind as they have become upside down in value. The costs of writings, reading, subscribing, and commenting on blogs are more expensive compared to micro-blogging or status updates.
Why blog when hanging out on social networks are so much easier? Blogs can only survive as long as they have information worthy.
Why blog when readers are no longer reading? Posting blog entries on social networks does help keep traffic levels somewhat by getting exposure.
As bloggers providing valuable expression leave blogging, the value of blogs decrease. People will still blog. It just won’t be the popular thing to do.