UserLand Software has released the first public alphas of Frontier 5.0 for the Mac and, for the first time ever, Windows. Frontier is a free integrated outlining tool / scripting language / object-oriented database that has gathered a loyal following on the Mac for its capability to tie applications together via powerful scripting. Recent releases have focused on helping webmasters maintain complex and frequently updated Web sites (see Spinning the Web Part 5: New Frontiers in TidBITS 389). If you use Frontier to maintain a Web site, note that significant changes were made to Frontier's Web site framework. Bear in mind that alpha releases aren't guaranteed to be stable and may not be feature complete.