Great resource for us European bakers!
According to the Alt.cooking FAQ
flour, Deaf Smith 130 grams/cup
flour, U.K. self-raising 110 grams/cup
flour, U.S. all-purpose 100 grams/cup
flour, buckwheat 170 grams/cup
flour, cake 90 grams/cup
flour, legume 130 grams/cup
flour, potato 170 grams/cup
flour, rice 150 grams/cup
flour, rye 90 grams/cup
flour, semolina 175 grams/cup
flour, wheat bread 100 grams/cup
flour, whole wheat 130 grams/cup
sugar, brown 200 grams/cup
sugar, castor 190 grams/cup
sugar, confectioner's 130 grams/cup
sugar, granulated 190 grams/cup
sugar, powdered 130 grams/cup