I think the first thing to do is develop a great reputation as a blogger/writer. Then you have to create a relationship with fellow bloggers with the same niche as yours, then I guess that will be the time to ask if they’re open to guest posting.
hmmm… it’s a better idea. But I think this is more effective to be a registered poster than a guest poster… isn’t it ??
Go for the blog which you like to post you may have section name as contribute or write for us just click the link and send your post… they will contact you if your post ok
You just search the websites into your niche which allows guest post, then send an email to the owner of that website the owner will demand some proofs of your previous guest posts, once approved then you will be able to post as a guest.
I am still not clear about Guest Posting. If anyone really post, then why he would do so as a Guest ? Why not as a Registered Member ?
It depends on the owner of the site that what he considered a “Guest” or a “Registered Member”, and I think the owner will not considered a registered member because he is providing the guest post services.
Your welcome dear.
hmmm… But it’s always easy to post as a registered member rather than posting as a Guest member. A Guest member must prove himself as a good writer first. That’s not easy actually.
You are right If we think logically the owner is providing the Guest services then why he will considered as a registered member?
hmmm.sure. But I have seen many site owners are taking guest posting as well as they have the option for registered member also ! !!
Wow! Then our preferences should be for such owners.
obviously. But they are a bit strict about writing quality and allow membership hardly… 
You are right It is an other major problem but If you want something special then you have to present something special…
That’s really True man. You must have to work hard.
Guest posting is not for those blogs that you can just registered and post anything you like.
So is there separated site for guest posting ?
Yes they are separated sites in which you can’t registered yourself I have told you before that if the owner will allow then you will be able to post.
Choose a blog, write a guest post. Make it clear that the topic on which you are writing wasn’t published before on the blog. Make your content new and unique. Don’t afraid of being rejected by the author. In chance your article get rejected, you could apply for the guest posting on other blog or you can publish it into your blog. If get rejected ask for feedback, some blog owner are kind enough to give feedback and are of improvement.
There are two methods we are going to go over in order to find places to post our content.
-The fist is find relevant websites or blogs and contact the owner asking if they’d be interested in receiving content from us.Finding websites is simple, all I do is go into Google and shop around for websites in my niche. All I do from this point is pick one that doesn’t seem too big(usually only happens when it’s a corporations website) and find a way to contact them. Usually there will be an about me page or contact page, especially if it’s a blog.
-The second is a cool way to find people who are searching for exactly this… guest posters on their own blogs and websites. There is a website called Blogger LinkUp where you can enter into a system to have either 1) your requests for guest posts sent to thousands or 2) your titles of guest posts sent to thousands.
Hope It will useful with you:)
Its Easy… Look a for a guest postings sites… mostly call web 2.0 and make your posts… its fun.