Update: It appears that the Jets signed only 7 players to the practice squad simply because the 8th player they intended to sign, CB Omare Lowe, was signed to the main roster by the Minnesota Vikings.
The New York Jets signed the following 7 players to their practice squad: CB Andrew Davison, DT Alan Harper, WR Terrence Stubbs, WR Carl Kearney, QB Ricky Ray, FB Derrick Ward and OG Dave Yovanovits.
NFL teams are allowed to allocate up to 8 players to the practice squad, so the Jets still have one vacant spot, which most likely will be filled later this week.