PHP Links from DeltaScripts offers unique features and is really easy to install through a simple wizard. Features includes: Unlimited Custom Fields (dropdowns, checkboxes, radioboxes and textboxes with options!), Screenshot upload with thumbnails using GD, unlimited categories, unlimited subcategories, Link Checking, SmartyTemplates, SEO Friendly (using mod_rewrite), search engine, detailed page (optional), tell-a-friend, vote, Image security code, meber area, link approval, link letters and more. It has also a database, template and language system that makes it easy to upgrade when we release upgrades. All user side language is customizable and all emails can be edited from admin area. It also contains advanced paging with numbers and RSS feeds. Both Google and Yahoo! sitemaps for better indexing. No Zend/Ioncube encryption at all. Free for non-commercial/no-Google ad usage.