Posterous is Closing Down on April 30, 2013
We knew that this most likely was coming since Twitter bought Posterous almost a year ago. Most of the chatter around the internet social circles was speculation about why Twitter would want to buy Posterous. Most agree that one of the reasons was the talent of the design team and especially Sachin Argarwal ( CEO and Founder of Posterous) who is now the production manager for Twitter. And why would the production and design team of Posterous be so attractive to Twitter that they would buy Posterous for an undisclosed amount of money? It is most likely the connections Posterous has with Apple.
Another reason that has been floating around is for Twitter to be able to test ads on Posterous before they roll them out on Twitter. Interest graph advertising is the future of ads and Twitter wants to dish those up for their users.
So whatever the reason is will reveal itself over the next couple of years.
For now, if you want to save any of your posts and photos that you have on Posterous you will need to export them before April 30, 2013 because they are shutting down. Posterous is not accepting any new sign ups. I would suggest to export your blogs and photos and then delete your accounts.
Posterous has an export feature at the top of the page of your Posterous blog.
This is yet another reason that I keep saying that you need to have your own web real estate! You can not rely soley on other platforms that you don't own because they get sold, the rules change and the landlords change the locks!
Of course you need to use many of the web based tools, social media, forums and the rest but don't forget to own your own real estate on the internet!