osclass is Web-based software for creating classified ads. The ads can be general or specialized by category (such as cars, jobs, or real estate). It is easy to install on private/dedicated or shared hosting services. It has lots of options for customization. It is integrated with the TinyMCE WYSIWYG editor. It can be extended through modules (for vertical ads) or extensions (plugins). It supports multiple languages. The look and feel are can be changed with themes. It is SEO friendly. It has an integrated search engine with full text support. An unlimited number of categories and sub-categories can be defined. It has anti-spam facilities that are enabled out of the box (with CAPTCHAs and Askimet).
Sijio is a fast, high performance, easy to use and fully customizable PHP community script. It is equipped with all necessary professional tools and features to run a full fledged community site. Features include blogs, events, a forum, a gallery, polls, page management, user management, and RSS feeds, customizable Smarty powered templates, WYSIWYG editing of any content, easy picture upload, an unlimited number of attachments, and more. It is completely SEO friendly.