Shakti peethas are innumerable. They are classified in to different lists based on the style of worship. Many of us know about 18 Shakti peethas, 51 Shaktipeethas. But, there are other lists too. Again, we have many Important and Famous temples of Shakti which were not described in the above lists. They were described in different Puranas, Tantras etc. This forum tries to collect all of them at one place.
Few examples to begin with:
There is a list of four(3 1/2) very important Shaktipeethas in Luptagama Sangraha.
There is another list of four(3 1/2) Shaktipeethas described in Devi bhagavata.
A Well known temple of Kanaka durga in Vijayawada (Andhra pradesh) is depicted in Brahmanda Purana. etc...