GraphicsMagick is a robust collection of tools and libraries which support reading, writing, and manipulating an image in over 90 major formats including popular formats like DPX, DICOM, BMP, GIF, JPEG, JPEG-2000, PDF, PNG, PNM, SVG, and TIFF. A high-quality 2D renderer is included, which provides a subset of SVG capabilities. C, C++, Perl, Tcl, and Ruby are supported. Originally based on ImageMagick, GraphicsMagick focuses on performance, minimizing bugs, and providing stable APIs and ABIs. It runs on all modern variants of Unix, Windows, and Mac OS X.
NewsCloud is software you can use to power engaging social media communities. It provides a suite of Facebook-connected interactive features that can help you host a vibrant online community for your neighborhood, topic, community group, nonprofit, membership association, or city. While most content management systems are optimized around publishing, NewsCloud's features offer ways for your audience to participate and lead the site with user generated content. As activity increases, you can integrate advertising and paid content referral systems to capture new revenue streams. NewsCloud is designed to help you move beyond the limitations of Facebook pages.
XapianFu is a Ruby library for working with Xapian databases. It builds on the GPL licensed Xapian Ruby bindings, but provides an interface more in-line with "The Ruby Way"(tm) and is considerably easier to use. For example, you can work almost entirely with Hash objects, and XapianFu will handle converting the Hash keys into Xapian term prefixes when indexing and when parsing queries. It also handles storing and retrieving hash entries as Xapian::Document values. XapianFu basically gives you a persistent Hash with full text indexing (and ACID transactions).
Ruby appscript (rb-appscript) is a high-level, user-friendly Apple event bridge that allows you to control scriptable MacOS X applications using ordinary Ruby scripts. It is a port of the powerful, mature Python appscript package, making Ruby a serious alternative to Apple's own AppleScript language for automating your Mac.