Mattel started to reproduce vintage Barbies in 1994. Here is an overview of the reproductions, that i found on the Mattel website, on Ebay and on collector websites. I didnt add updates after 2008.

Reproduction Barbies listed by year:

1994: 35th anniversary doll (Ponytail Nr.1 from 1959, blonde or brunette, swimsuit), ca. 29 Euro
1994: same as above, but as giftset (2 dresses included, Limited Edition), ca. 99 Euro
1995: Busy Gal Barbie (brunette Ponytail, curled bangs, Limited Edition), ca. 40 Euro
1995: Solo In The Spotlight (blonde or brunette ponytail with black gala dress), ca. 29 Euro
1996: 30th anniversary Francie (Francie in green box, Limited Edition), ca. 40 Euro
1996: Enchanted Evening (brunette or blonde Ponytail, Collector Edition), ca. 25 Euro
1996: Poodle Parade (American Girl Barbie, Limited Edition), ca. 35 Euro
1997: Fashion Luncheon (American Girl, reddish hair, bangs, Limited Edition), ca. 30 Euro
1997: Wedding Day Barbie (blonde or reddish Ponytail, Collector Edition), ca. 30 Euro
1997: Wild Bunch Francie (2nd reproduction of cousin Francie, 1970s fashion, Limited Edition), ca. 150 Euro
1998: Midge 35th anniversary (repro of the 1963 Midge), ca. 79 Euro
1998: Silken Flame Barbie (blonde or brown Bubblecut, 60s dress, Collector Edition), ca. 40 Euro
1999: Bowling Champ Barbie (blonde Ponytail), ca. 30 Euro
1999: Far Out (blonde MOD TNT Barbie with bangs, clothes in 70s style, limited), ca. 45 Euro
1999: TNT Barbie (Smasheroo dress, Collector Request Nr.1), ca. 35 Euro
1999: Commuter Set (repro of a 1959 barbie, blonde hair, limited, Collector Request Nr.2), ca. 30 Euro

2000: Sophisticated Lady (blonde Bubblecut in gala dress, ltd., Collector Request Nr.3), ca. 70 Euro
2000: Suburban Shopper (brown hair, summer dress, Collector Request Nr.4), ca. 80 Euro
2001: Malibu Barbie (repro with the original 1970s accessoires), ca. 20 Euro
2002: Gold'n Glamour Barbie (limited, blonde, Collector Request Nr.5), ca. 75 Euro
2003: Gay Parisienne (limited, brunette hair, Collector Request Nr.6), ca. 100 Euro
2003: Color Magic Barbie (blonde or black hair, accessoires, Collector Request Nr.7), ca. 30 Euro
2004: Open Road (brunette ponytail barbie, dress from 1961, Gold Label), ca. 100 Euro
2005: Evening Splendor (blonde ponytail Barbie, 1959 dress, Gold Label, Collector Request Nr.8), 25 Euro
2005: Smashin Satin Francie (no bangs, limited to 8500, Gold Label), ca. 45 Euro
2006: All That Jazz (60s Standard Barbie, Gold Label, Collector Request Nr.9), ca. 49 Euro
2006: Career Girl (blonde bubblecut in grey business dress, Gold Label), ca. 40 Euro
2006: Friday Night Dream Date (Reddish ponytail Barbie & Ken, Gold Label), ca. 70 Euro
2006: Made For Each Other (1969 Barbie, blonde or brunette hair, Gold Label), ca. 40 Euro
2006: Nite Lightning Stacey (Repro of Barbies british friend, red hair, Gold Label), ca. 40 Euro
2006: Picnic Set (brunette Barbie with picnic dress, Gold Label, Limited to 10600), ca. 60 Euro
2007: Barbie Learns To Cook (60s dress, blonde or brunette ponytail, Platinum), ca. 40 Euro
2007: Evening Gala (brunette American Girl in gala dress, Gold Label), ca. 39 Euro
2007: Knitting Pretty (Barbie and Skipper, reddish hair, Collectors Edition), ca. 79 Euro
2007: Red, White and Warm (brunette Barbie in winter dress, Gold Label), ca. 35 Euro
2007: Sleepytime Gal (blonde American Girl with dresses/accessoires, Gold Label), ca. 70 Euro
2008: Campus Spirit (Barbie and Ken College Giftset, Collectors Edition), ca. 99 Euro
2008: Campus Sweetheart (brunette or blonde Amercian Girl, Gold Label), ca. 40 Euro
2008: Barbie Campus Sweet Shop Gift Set (Midge and Alan Set, Gold Label), ca. 70 Euro

Notes: The given prices i found on german Ebay in summer 2008 (all mint in box), just as little orientation for german/european collectors. Probably you can find the dolls a bit cheaper on Ebay USA or at some international Mailorders. It is definitely worth the time to compare prices before ordering. / My list does not include porcelain repros, but only vinyl dolls. Also Skipper and Ken Repros are not listed here and i dont plan to add them in the future. Check here: www.barbiecollector.com