Pre-Black Friday shopping has already begun online, but many retailers are prepping for the biggest shopping event of the year.

Here is a look at some of the best Black Friday deals.

Toys R Us  opens at 8 p.m. Thanksgiving with offers that include a Fisher-Price Rock Star Mickey for $19.98, Power Wheels riding sports quads at $49.99, and a Leapfrog tag reading system with select books for $19.99.

Other Toys R Us deals include the Skylanders Giants Starter Pack for $49.99, the NERF Stampede ECS-50 Blaster for $24.99, and the Imaginarium City Central train table for $39.99.

Walmart will start their Black Friday deals on Thanksgiving with doors opening at 8 p.m. and offering a one-hour sale from 10 p.m. to 11 p.m. to receive special deals. The one-hour sale includes a 16GB Apple iPad2 with WiFi for $399 plus a $75 Walmart gift card, an Emerson 32" 720p LCD television for $148, and LG Blu-ray players for only $38.

Walmart will also sell Nintendo Wii consoles for only $89.

GameStop locations will one up at either Midnight or 5 a.m. on Black Friday, so check your local retailer for hours of operation. The deals include a Nintendo 3DS XL for $199, a 250GB Xbox 360 with three free games for $249, and a 250 GB Playstation 3 with five free games for $199.97.

Target opens Thanksgiving at 9 p.m. with door buster deals that includes:  a 32" HDTV for $147, Xbox 360 Kinect bundles for $199.99, Polaroid 19" LED/DVD TVs for $109.99 and Nook Simple Touch E-Readers for $49

Other Black Friday deals for Target include HP 2000 laptops for $279, a Nikon L310 camera for $99 and Apple iPads with Retina Displays for $499 with a $60 Target gift card.

Best Buy will hand out tickets to customers in line starting at 10 p.m. Thanksgiving night to avoid the midnight rush. The tech store's deals include a Samsung 15.6" laptop with 4 GB memory and 500 GB hard drive for $349.95, and a Toshiba 40" LCD HDTV for $179.99. 

Best Buy has deals on Apple devices like the iPod touch 32GB MP3 Player (5th generation) bundled with a $50 Best Buy gift card for $295. The iPod Nano 16GB (7th generation) device will be offered with a bundled $20 gift card for $145.

Sears opens their doors at 8 p.m. on Thanksgiving offering a door buster HDTV: 32" TV for $97, Proscan DVD players for $9.99, and select 2 CT diamond jewelry for $99.

Clothing retailers are also advertising big deals on Black Friday like H&M offering a wide array of items for $5 and Aeropostale's sale which includes 60% off all clothes. Old Navy's deal includes fleece half-zips for the family for $15, jeans at $15, and women's boots for $12. 

JCPenney is offering over 50 styles of women's boots for $25, Liz Claiborne and Nicole Miller purses $15 to $20, and select women's coats for $40.