Here is the weekly manga sales ranking top 30 for July 6th - 12th.

*1, 154,234 414,666 Katekyo Hitman Reborn! vol.25
*2, 138,670 343,102 Gintama vol.29
*3, 111,839 111,839 Angel Heart vol.30
*4, *88,645 219,042 Natsume Yuujinchou vol.8
*5, *86,472 437,616 Pluto vol.8
*6, *83,074 *83,074 Initial D vol.39
*7, *74,142 *74,142 Hanma Baki vol.19
*8, *66,954 490,810 Kuroshitsuji vol.7
*9, *64,344 164,186 JoJo's Bizarre Adventure Part 7: Steel Ball Run vol.18
10, *55,918 118,779 Gyagu Manga Biyori vol.10

11, *53,712 107,313 PPOI! vol.27
12, *49,635 *49,635 Asu no Yoichi! vol.10
13, *46,491 *46,491 Suzumiya Haruhi-chan no Yuutsu vol.3 Limited Edition
14, *46,101 *46,101 Shinjuku Swan vol.19
15, *45,663 102,832 Pyuu to Fuku! Jaguar vol.17
16, *43,636 *43,636 Ganso! Urayasu Tekkin Kazoku vol.23
17, *41,395 *41,395 Saru Lock vol.21
18, *39,684 *90,847 Beelzebub vol.1
19, *39,486 *39,486 Higanjima vol.27
20, *37,458 *37,458 Gifu Dodo!! Naoe Kanezugu vol.3

21, *35,936 *35,936 Kenka Shoubai vol.16
22, *35,779 *51,478 Hyakki Yakou Shou vol.18
23, *34,884 421,161 Ookiku Furikabutte vol.12
24, *32,037 *67,957 Bartender vol.14
25, *31,060 *76,713 Shiki vol.5
26, *30,164 369,174 xxxHOLiC vol.15
27, *30,053 *66,134 Harukanaru Toki no Naka de vol.16
28, *29,264 *29,264 Kodomo no Jikan vol.7
29, *29,117 243,163 Billy Bat vol.1
30, *28,939 *77,711 Majin Tantei Nougami Neuro vol.22

The last week's ranking: Japan's Weekly Manga Ranking For Jun 29 - Jul 5
Source: Oricon Comic Ranking

Yoshikawa Hideaki's manga "Akuma to Ore" was cancelled eleven days before the release. It's been serialized on GanGan Online magazine, but the manga was completely erased from GanGan website.The author raged that he hadn't been informed of the cancellation. The reason of the cancellation is probably the obscenity of the manga.

Sources:
Akuma to Ore web page on GanGan Online (Blank page)
Yoshikawa's blog

Kitou Mohiro announced in his blog that a special chapter of Bokurano "Bokurano Tokubetsu-hen" was cancelled. It was supposed to be released in IKKI magazine September issue.

Source: Kitou's blog

Weekly Light Novel Ranking for Jul 6 - 12
*1, 76,505 *76,505 Toaru Majutsu no Index vol.18
*2, 46,557 126,153 Katekyo Hitman Reborn! Kakushidama vol.3
*3, 24,338 *24,338 Kyoukaisenjyou no Horizon vol.2 Part 2
*4, 17,336 *17,336 C3 vol.7
*5, 17,329 *39,478 Kuruneko vol.4
*6, 13,051 *32,401 Naruto Illustration Book
*7, 12,416 *12,416 Rinkan no Madoushi vol.6
*8, 11,971 *11,971 Durarara!! vol.6
*9, 11,933 *11,933 Westadia no Sousei vol.5
10, 11,732 *11,732 Tarot no Goshujin-sama vol.7
11, 11,473 *46,161 Maria-sama ga Miteru Little Horrors
12, 10,675 *92,970 Shinrei Tantei Yakumo vol.5
13, *9,886 **9,886 Kamisama no Memo-chou vol.4
14, *9,753 **9,753 Goshujin-sama ha Yamanekohime vol.2
15, *9,288 **9,288 Chisui Mura e Youkoso vol.2

Source: Oricon novel ranking