Lost: Missing Pieces (2007-2008) was a series of thirteen webisodes that aired between November 2007 and February 2008. The Agents of Doux (Paul Kelly, Shannon and Allison) recapped, and in some cases, reviewed these webisodes for those of us hungry for more Lost. While these webisodes are no longer "officially" available, versions with subtitles in languages other than English are readily available on Youtube, like this one.
Billie Doux's Lost reviews and the many articles the Agents of Doux wrote about the series can be found here.
1. The Watch
2. The Adventures of Hurley and Frogurt
3. King of the Castle
4. The Deal
5. Operation: Sleeper
6. Room 23
7. Artz & Crafts
8. Buried Secrets
9. Tropical Depression
10. Jack, Meet Ethan. Ethan? Jack
11. Jin has a Temper-Tantrum on the Golf Course
12. The Envelope
13. So It Begins