Howcast - Learn how to do the mermaid, an intermediate Pilates Mat exercise, from Core Pilates NYC instructor Sarah Ruback in this Howcast workout video.

Howcast - Learn how to hire a bartender with the advice from restaurateur Paul Bolles-Beaven in this Howcast video.

Howcast - Learn how to do rows on a bosu ball from personal trainer Rachel Shasha in this exercise ball workout video from Howcast.

Howcast - Learn how to advance and retreat when fighting with a katana from Sensei Oliver Martin in this katana sword fighting video from Howcast.

Howcast - Learn how to do a 180 jump squat in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a side traveling burpee in this Howcast workout video about plyometric exercises.

Howcast - Learn how to play 16th note arpeggios in this flamenco guitar lesson video from Howcast.

Howcast - Learn how to do a scissor takedown to ankle lock leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to keep leg and foot control during leg locks in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to switch from a heel hook to a toe hold leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo and mma.

Howcast - Learn how to practice picado in this flamenco guitar lesson video from Howcast.

Howcast - Learn how to do the top three plyometric exercises for legs in this Howcast workout video about plyometrics.

Howcast - Learn how to do the top three plyometric ab exercises using a slider in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a burpee with lateral leg raise in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a 180 jump with punches in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a shuffle suicide in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do an up and over box jump in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a run stance squat, an intense leg plyometric exercise, in this Howcast workout video about plyometrics.

Howcast - Learn how to hold a flamenco guitar and how to position your hands correctly in this beginner guitar lesson video from Howcast.

Howcast - Learn how to do a squat hop, an intense leg plyometric exercise, in this Howcast workout video about plyometrics.

Howcast - Are you up for a challenge? It takes a great guitarist to play the double guitar.

Howcast - Check out part 60 and rescue the Migrant Civilian Fleet by disabling the Geth Dreadnought in this walkthrough of Bioware's new release, Mass Effect 3.

Howcast - The semaphore flag-signaling system is an alphabet-based system that requires waving a pair of hand-held flags in particular patterns. Here's how you send a rescue signal using the flags.

Howcast - Head to Amada's R&D floor in Binary Domain, the squad-based third-person shooter from Yakuza Studio.