TinyChat is about as simple as a build your own web chat page could be. You just click a button to create a room and then enter the room or copy the link to share with others.
BuddyPress is a suite of WordPress plugins and themes which extends WordPress MU and brings social networking features to a new or existing installation.
WordTwit is a plugin that utilizes the Twitter API to automatically push a published post to your Twitter account as a tweet, using the blog domain as a short URL.
Publish full articles without needing a blog or site. There's no setup or login. Just write your text and Write4net will publish it using your Twitter account.
Google Scholar (GS) was released as a beta product in November of 2004. Since then, GS has been scrutinized and questioned by many in academia and the library field. Our objectives in undertaking this study were to determine how scholarly GS is in comparison with traditional library resources and to determine if the scholarliness of materials found in GS varies across disciplines. We found that GS is, on average, 17.6% more scholarly than materials found only in library databases and that there is no statistically significant difference between the scholarliness of materials found in GS across disciplines.
Free-OCR.com is a free online OCR (Optical Character Recognition) tool. You can use this to perform OCR on any image you supply. This service is free, no registration necessary. We also do not need your email address. Just upload your image files. Free-OCR takes either PDF, JPG, GIF, TIFF or BMP format. The only restriction is that the images must not be larger than 2MB, no wider or higher than 5000 pixels and there is a limit of 10 image uploads per hour.
CommentPress is an open source theme for the WordPress blogging engine that allows readers to comment paragraph by paragraph in the margins of a text. Annotate, gloss, workshop, debate: with CommentPress you can do all of these things on a finer-grained level, turning a document into a conversation. It can be applied to a fixed document (paper/essay/book etc.) or to a running blog.