The Mark-My-Time Digital Bookmark costs just $8.95 yet it’s light years ahead of old fashioned bookmarks. The old fashioned bookmarks features a built-in clock and countdown timer with alarm and a cumulative timer to keep track of your total reading time. The Mark-My-Time Digital Bookmark is a great way for parents to see how long a child reads for or it can serve as a method for timing activities in general. The coolest bookmark ever is available in neon blue, neon purple, and neon green.