Hidetext lets you convert text to an image. This means you can hide passwords, personal messages, pieces of code, or any kind of private information on forums, blogposts, emails, irc, msn-aim chats,….

There seems to be some confusion what this site is really about.. here’s some blurb to enlighten you a little bit.

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Yahoo! Pipes is a powerful composition tool to aggregate, manipulate, and mashup content from around the web. It’s a service that generalizes the idea of the mashup, providing a drag and drop editor that allows you to connect internet data sources, process them, and redirect the output.

Like Unix pipes, simple commands can be combined together to create output that meets your needs:

• combine many feeds into one, then sort, filter and translate it.
• geocode your favorite feeds and browse the items on an interactive map.
• power widgets/badges on your web site.
• grab the output of any Pipes as RSS, JSON, KML, and other formats.

Website: http://pipes.yahoo.com

OpenInviter is an open source PHP class, written in PHP5, for importing contacts from most of the well-known e-mail providers & social networks.

Such an invite feature is great, specially when presented as optional, to gain new users/visitors to any service.

There are already ready to use integrations for:

• WordPress
• Drupal
• Joomla
• phpBB & more.

OpenInviter supports:

• Gmail
• Windows Live
• Yahoo
• Mail.com
• Facebook
• Friendster
• hi5
• Linkedin
• Twitter
• Myspace & more..

Requirements: PHP5 & cURL or wget

Website: http://openinviter.com/

Exactfactor is a free web based service that enables you to analyze the positions of keywords of a website in major search engines.

It lets you to add competitors & compare your website’s results with a competitor.

Another nice feature is the ability to add alerts. You can get alerts when:

• keywords you mentioned become the top 1, top5, etc. in the search engines
• your website beats a competitor for the given keywords

Exactfactor is very easy to use with a clean interface & considering search engines are the most important “factors” of traffic, the service is definitely helpful.