The central character of Blacula was resurrected for Scream, Blacula, Scream (1973).

Blacula won the first-ever "Best Horror Film" award at the 1972 Saturn Awards.

Although ignored by most critics at the time of its release, Blacula enjoyed a cult following that was given a boost in the 1980's thanks to exposure via Elvira's syndicated TV series, Movie Macabre.

Producer Paul Norbert and Dimension Productions announced Black Dracula the same year, but it was never made.

Matt Groening is clearly a fan, if the multiple references to Blacula in The Simpsons or Futurama is any sign. Wikipedia lists four:
1) In Simpson Tide, Homer is watching TV, and hears an announcer's voice say "Next, on Exploitation Theatre... Blacula, followed by Blackenstein, and The Blunchblack of Blotre Blame!"
2) In All's Fair in Oven War, a clip from the fake film Blacula Meets Black Dracula can be briefly seen.
3) In the I've Grown a Costume on Your Face segment of Treehouse of Horror XVI, Dr. Hibbert dresses as Dracula for Halloween, but Mayor Quimby confuses him for Blacula. When Hibbert appears offended by this, Quimby whispers to his bodyguard "Get him the standard racist remark apology letter. It's in the middle drawer."
4) In a segment from the Anthology of Interest I episode of Futurama, Fry's old boss Mr. Panucci states "There's only three real monsters, kid: Dracula, Blacula and Son of Kong."

Blacula film editor Allan Jacobs would later work on another vampire film – this time featuring a protagonist who, while not black, was certainly known for his luxurious and dark tan (George Hamilton): Love at First Bite (1979).

In the same year as Blacula's release, cinematographer John M. Stephens (credited as John M. Stevens in Blacula), also worked on Martin Scorsese's Boxcar Bertha. He later worked for William Friedkin shooting Sorcerer (1977).

The original score for Blacula was conducted by Gene Page, who co-arranged many of Barry White's biggest hits and also worked on many of the H.R. Pufnstuf episodes as well as Brewster McCloud (1970).

Compiled by Pablo Kjolseth

Sources:
Internet Movie Database
Wikipedia