The 2008 MTV Video Music Awards (VMAs) have opened up the proverbial floodgates, and are now offering fans a chance to pick the winners in eight categories.

While voting for "Best Male Video" and "Best Female Video" have already closed, here is a list of the awards still in need of votes, and the time during which votes are being taken.

July 25-30:
"Best Pop Video" and "Best Hip-Hop Video"

August 1-6:
"Best New Artist" and "Best Dancing In A Video"

August 8-13:
"Best Rock Video" and "Video Of The Year"

August 8-September 7:
"Best New Artist"

The nominees already chosen are the following:
"Best Male Video": Chris Brown - "With You," Flo Rida - "Low," Lil Wayne - "Lollipop," T.I., "No Matter What," Usher "Love In This Club."

"Best Female Video": Mariah Carey - "Touch My Body," Katy Perry - "I Kissed A Girl," Rihanna - "Take A Bow," Jordin Sparks - "No Air," Britney Spears - "Piece of Me."

The VMAs will air on September 7 live from Los Angeles at 9PM ET on MTV. To vote, go to www.mtv.com/ontv/vma/2008/categories.jhtml.