Posterous

Posterous is a simple blogging platform started in May 2008, funded by Y Combinator. It supports integrated and automatic posting to other social media tools such as Flickr, Twitter, and Facebook, a built-in Google Analytics package, and custom themes. It is based in San Francisco.
Updating to Posterous is similar to other blogging platforms. Posting can be done by logging in to the website's rich text editor, but it is particularly designed for mobile blogging. Mobile methods include sending an email, with attachments of photos, MP3s, documents, and video (both links and files). Many social media pundits consider Posterous to be the leading free application for lifestreaming. The platform received wide attention when leading social media expert Steve Rubel declared he was moving his blogging activity entirely to Posterous.
Posterous also has its own URL shortening service, which as of March 2010 can post to 
Twitter.

Go to: Posterous

Posterous allows users to point the DNS listing for a domain name or subdomain they already own to their Posterous account, allowing them to have a site hosted by Posterous that uses their own domain name.
In May 2010, Posterous was recognized as one of the “2010 Hottest Silicon Valley Companies” by Lead411.


E-mail spoofing


Posterous allows posting of content directly to one's blog via e-mail, choosing where to put the content based on the return address of the e-mail. While this feature is very convenient, return e-mail addresses are easily spoofed, allowing for malicious users to post unwanted content on another person's blog. Posterous claims that they can filter out messages not actually sent by the account holder through other means besides just the return address. They do not publish their methods, but it appears that they use a combination of SPF-checking and filters on e-mail headers to verify that the e-mail client or machine from which the e-mails were sent are similar to previously verified e-mails. Posterous does not offer any options for the user to require confirmation on all posts, no matter who sends them.
In June 2008, a blog post on TechCrunch challenged its readers to try to spoof the author's Posterous blog. Three posters were successful, out of quite a few attempts, but Posterous quickly fixed the security hole which allowed these posts to go through.




Mobile


In August 2009, Posterous launched PicPosterous, an iPhone application for quickly posting photos to a posterous page.
As of January 2011, Posterous has also launched an app for the Android platform which is currently supported by 9 different phone models.