Rank	Journal Title	Impact Factor
1	SCIENCE	30.028
2	NATURE	26.681
3	P NATL ACAD SCI USA	9.643
4	PHILOS T R SOC A	2.282
5	NATURWISSENSCHAFTEN	2.021
6	BIOL LETT-UK	2.000
7	ANN NY ACAD SCI	1.930
8	SCI AM	1.560
9	CR BIOL	1.484
10	IBM J RES DEV	1.483
11	P ROY SOC A-MATH PHY	1.338
12	COMPLEXITY	1.018
13	ANN CARNEGIE MUS	1.000
13	J R SOC NEW ZEAL	1.000