Scalp is a nifty little tool to share your iCal calendar with anyone. This little hack lets you publish a calendar to .Mac via FTP or SFTP. You can set a password and username to protect it in SFTP, in case you want your calendars to be private. Publishing to iCal can be a very good and fast way of actually sharing dates and notes with your friends and colleagues. Scalp lets you set five different publishing settings: tasks, titles and notes, automatic modifications, alarms and attachments. Effectively you can then almost publish different versions of the same calendar. Setting up Scalp is a little tricky, especially managing to connect via FTP to your .Mac account, but once it's up and ready, there's no real difficulty to running the program. The application can still be a little unstable though, especially on Power PC, where it hasn't really been tested. Despite its instability, Scalp is a nifty hack to easily publish iCal calendars via FTP to .Mac.