Here is the weekly manga sales ranking top 30 for February 23rd - March 1st.

*1, 233,769 233,769 Pluto vol.7
*2, 104,530 104,530 Kyou, Koi wo Hajimemasu vol.5
*3, 103,811 103,811 Sekirei vol.8
*4, *90,904 *90,905 Vinland Saga vol.7
*5, *90,690 355,083 xxxHOLiC vol.14
*6, *86,223 *86,223 Historie vol.5
*7, *80,359 *80,359 B.O.D.Y. vol.15
*8, *77,870 *77,870 Sumomomo Momomo vol.12
*9, *76,801 *76,801 Team Medical Dragon vol.20
10, *72,778 *72,778 Keroro Gunsou vol.18

11, *66,023 *66,023 Zipang vol.39
12, *65,209 *65,209 Switch Girl!! vol.8
13, *60,836 *60,836 To Aru Kagaku no Rail Gun vol.3
14, *60,770 169,807 GANTZ vol.25
15, *60,351 181,061 Major vol.71
16, *60,066 *63,004 Saiunkoku Monogatari vol.4
17, *59,851 196,922 Skip Beat! vol.21
18, *59,746 *59,746 Shachou Shima Kousaku vol.2
19, *59,460 *59,460 Roto no Monshou vol.8
20, *56,022 197,921 Inu Yasha vol.56

21, *52,774 *52,774 Blade of the Immortal vol.24
22, *49,357 *49,357 NanaKo Robin vol.3
23, *47,770 *63,251 Koizora - Setsunai Koimonogatari vol.8
24, *47,336 225,239 Mahou Sensei Negima! vol.25
25, *46,871 192,673 Ace of Diamond vol.14
26, *46,724 *46,724 Gaku vol.9
27, *46,411 *46,411 Hyougemono vol.8
28, *44,692 *44,692 Ichigo Mashimaro vol.6
29, *43,301 *43,301 Himitsu vol.6
30, *42,427 *42,427 Devil and Her Love Song vol.6

Additional info:
Sato, Shuuhou disclosed the dispute against Kodansha over the suspension of the publication of "Black Jack ni Yoroshiku (Say Hello to Black Jack)" in his official website. He claimed that the editors altered the lines and the names of the characters, and licensed other publishers to use the manga without his permission. He quitted Kodansha and resumed the publication of the manga in Big Comic Spirits in 2007 and changed the title into "Shin Black Jack ni Yoroshiku"

Source: Sato Shuuhou's official website
Source: Oricon Comic Ranking


Weekly Light Novel Ranking For Feb 23 - Mar 1
*1, 60,326 82,700 Zero no Tsukaima vol.16
*2, 44,946 44,946 Shinrei Tantei Yakumo - Akai Hitomi wa Shitteiru vol.4
*3, 14,348 14,348 Rental Magica vol.16
*4, 12,752 14,790 Kenpufer vol.9 (Cove Illustration)
*5, 11,978 11,978 Flesh & Blood vol.12 Limited Edition

Weekly Light Novel Ranking For Feb 16 - Feb 22
*1, 22,374 22,374 Zero no Tsukaima vol.16
*2, 21,471 21,471 Dai Densetsu no Yuusha no Densetsu vol.5
*3, 16,005 16,005 Toaru Hikoushi e no Koiuta
*4, 15,494 15,494 Orange no Kokoro -Tomare
*5, 14,293 14,293 Maburaho Jyonan no Maki vol.4
*6, 12,391 12,391 Real Bout High School vol.17
*7, 10,881 90,055 Shakugan no Shana vol.18

Source: Oricon Novel Ranking