Blake Lively wore Belle by Sigerson Morrison Women’s 6067 Boots (available from Endless.com, $495) on the set of Gossip Girl on January 7th, 2010. (source)

Blake Lively appeared to wear Marc by Marc Jacobs Navy Blue T-Bar Sandals (£288.00) to the W Hotel grand opening in Fort Lauderdale on June 4th, 2009.

Steal her shoe style for less…

rsvp Encore dress sandal, $29.90 (regularly $71) from 6pm.com
Michael Antonio Cael T-Strap Sandal in Blue, $34.25 from Endless.com 
Chinese Laundry Mystic High Heel Dress Shoe in Navy, $48.74 from Endless.com
Lumiani Fawn evening sandal, $60.09 (regularly $196) from 6pm.com

Wedding Evening Prom Silver Sandal Shoes Sz 6 -S280 US $28.50 Auction Ends: Sunday Feb-05-2012 9:52:47 PST   | Watch this Item

jimmy choo - evening sandal shoes satin heels pumps black - 37.5 italy US $189.00 Auction Ends: Sunday Feb-05-2012 10:06:08 PST   | Watch this Item

Blake Lively wore Te Casan Fenny Boots during the Gossip Girl Season 2 Episode – You’ve Got Yale.  Te Casan by Fay Baldock Fenny Boots are available from Endless.com, $275.

Jessica Simpson’s shoe line carries several very similar styles (for less)…

Jessica Simspon Jovi Boot, on sale for $119 (reg $149) from Zappos.com
Jessica Simpson Yindly Boot, on sale for $136 (reg $195) from Heels.com
Jessica Simspon Lynell Boot, $197.95 from ShoeBuy.com

Jessica Simpson Alster Womens SZ 8.5 Brown Whiskey Boots Knee Shoes US $138.99 Auction Ends: Sunday Feb-05-2012 10:01:19 PST   | Watch this Item

Blake Lively wore Giuseppe Zanotti I87042 Studded Ankle Boots in Cam Prunotto on the second season of Gossip Girl, are on sale at Endless.com.

Same style in Nero black is on sale at Zappos.com.

Giuseppe Zanotti was the creator of jewelry for the feet and later expanded his trademark style by adding innovative components to shoes such as flowers, bows, silks, and supple leathers. Today a driving force in the luxury shoe industry, Giuseppe always dreams of his product being worn from day to night. It’s all about the mentality of a woman and her lifestyle. He believes that every day is a special day when you’re wearing a Giuseppe Zanotti shoe.

Blake Lively wore a pair of classic short black UGG boots on the Gossip Girls set.

Grab your own pair of Ugg Classic Short Boots in Black from Zappos.com, $134

Steal Blake’s style for less with these Ugg knock-offs…
EMU Australia Women’s Bronte Lo Boot from Endless.com, $69.95
EMU Australia Unisex Bronti Low Boot from Endless.com, $45.47 (limited sizes)
Bearpaw Women’s 496 Sherpa Boot from Endless.com, $64.95
Rampage Ashlee Soft Suede Boots from Piperlime.com, $50
Wild Diva Melody-05-08 Uggs Look Low Fur Bootie, only $20.99! HOT!
Wild Diva Will-02 Uggs Look High Boots, only $19.97!

See other celebrities wearing classis short black Uggs (coined Bluggs).