Also:
Manga Top 500
Publishers’ Scorecard
Manga Midlist 500
Commentary Post

Note: for Last “Weeks” Rankings I went all the way back to the Top 25 series posted 30 December. (sorry, it was the last set of complete data I had.)

##

Consolidated Online Manga Sales Rankings
for the week ending 30 March 2008
Top 50 Manga Series

##

key:
rank. ↕movement (last wks. rank) : title - publ. & date of 1st volume & [weighted score] ::

1. ↔0 (1) : Naruto - Viz Shonen Jump Jul 2003 [17712.6] ::
2. ↔0 (2) : Death Note - Viz Shonen Jump Advanced Oct 2005 [12660.8] ::
3. ↑1 (4) : Bleach - Viz Shonen Jump Jun 2004 [10983] ::
4. ↓-1 (3) : Fruits Basket - Tokyopop Feb 2004 [9593.3] ::
5. ↑1 (6) : Fullmetal Alchemist - Viz Apr 2005 [6947.2] ::
6. ↑10 (16) : Ouran High School Host Club - Viz Shojo Beat Jul 2005 [5708.3] ::
7. ↓-2 (5) : Vampire Knight - Viz Shojo Beat Jan 2007 [5388.8] ::
8. ↑9 (17) : Tsubasa: Reservoir Chronicle - Del Rey Apr 2004 [5180.7] ::
9. ↔0 (9) : Pokemon - Vizkids Nov 1999 [4350.1] ::
10. ↑4 (14) : Negima! - Del Rey Apr 2004 [4249.7] ::
11. ↑47 (58) : One Piece - Viz Shonen Jump Jun 2003 [4126.3] ::
12. ↑3 (15) : Gentlemen’s Alliance† - Viz Shojo Beat Mar 2007 [3732.8] ::
13. ↑119 (132) : xxxHolic - Del Rey Apr 2004 [3700.4] ::
14. ↑13 (27) : Loveless - Tokyopop Feb 2006 [3663.9] ::
15. ↓-8 (7) : Warriors - HC/Tokyopop Apr 2007 [3638.8] ::
16. ↓-5 (11) : Kingdom Hearts - Tokyopop Oct 2005 [3550.4] ::
17. ↑92 (109) : Black Cat - Viz Shonen Jump Mar 2006 [3422.5] ::
18. ↓-8 (10) : Berserk - Dark Horse Oct 2003 [3372.3] ::
19. ↓-11 (8) : Dark Hunger — Feehan, Zid (single volume) - Berkley Oct 2007 [3261] ::
20. ↓-1 (19) : Hana-Kimi - Viz Aug 2004 [3174] ::
21. ↑47 (68) : +Anima - Tokyopop May 2006 [3143.1] ::
22. ↓-4 (18) : Absolute Boyfriend - Viz Shojo Beat Feb 2006 [3088.5] ::
23. ↑2 (25) : Skip Beat! - Viz Shojo Beat Jul 2006 [3069.5] ::
24. ↓-4 (20) : Yurara - Viz Shojo Beat Jun 2007 [2821.2] ::
25. ↑35 (60) : Return to Labyrinth - Tokyopop Oct 2007 [2788.7] ::
26. ↑10 (36) : Chibi Vampire - Tokyopop Apr 2006 [2780.3] ::
27. ↑12 (39) : Wild Ones - Viz Shojo Beat Dec 2007 [2775.2] ::
28. ↑46 (74) : Beauty Pop - Viz Shojo Beat Sep 2006 [2769.8] ::
29. ↑new (0) : Godchild - Viz Shojo Beat Mar 2006 [2752.5] ::
30. ↑2 (32) : High School Debut - Viz Shojo Beat Jan 2008 [2750.9] ::
31. ↑68 (99) : S.A (Special A) - Viz Shojo Beat Nov 2007 [2729.8] ::
32. ↓-20 (12) : Yotsuba&! - ADV Jun 2005 [2697.9] ::
33. ↑new (0) : Claymore - Viz Shonen Jump Advanced Apr 2006 [2644.7] ::
34. ↑79 (113) : Nana - Viz Shojo Beat Nov 2005 [2621.7] ::
35. ↑new (0) : The Twelve Kingdoms Novels - Tokyopop Mar 2007 [2554.2] ::
36. ↑19 (55) : Kitchen Princess - Del Rey Jan 2007 [2486.4] ::
37. ↔0 (37) : Millennium Snow - Viz Shojo Beat Apr 2007 [2457.2] ::
38. ↑79 (117) : D. Gray-Man - Viz Shonen Jump Advanced May 2006 [2431.4] ::
39. ↑new (0) : Blade of the Immortal - Dark Horse Mar 1997 [2416.4] ::
40. ↑new (0) : Shaman King - Viz Shonen Jump Aug 2003 [2360] ::
41. ↑new (0) : Monkey High! (1st volume) - Viz Shojo Beat Mar 2008 [2344] ::
42. ↑new (0) : Love*Com - Viz Shojo Beat Jul 2007 [2283] ::
43. ↑new (0) : Strawberry Panic - Seven Seas Strawberry Dec 2007 [2253.4] ::
44. ↑50 (94) : Pretty Face - Viz Shonen Jump Advanced Aug 2007 [2243.9] ::
45. ↑new (0) : Mamotte! Lollipop - Del Rey Feb 2007 [2206.4] ::
46. ↑new (0) : Gothic & Lolita Bible (1st volume) - Tokyopop Feb 2008 [2153] ::
47. ↓-5 (42) : Buso Renkin - Viz Shonen Jump Advanced Aug 2006 [2103.7] ::
48. ↑new (0) : Shugo Chara! - Del Rey Mar 2007 [2042.8] ::
49. ↓-26 (23) : Avatar - Tokyopop et al. Feb 2006 [2008.2] ::
50. ↑new (0) : Welcome to the NHK - Tokyopop Mar 2008 [1973.9] ::

##

Weighted Scores: for each series, I take the manga volume rankings (not just the top 500 but all 1229 individual volumes this week), use the score of the top ranked volume of a given series as a base, and then add one tenth of the scores for all other volumes of the series that appear in the list.

Actually, it looks more like this
=IF(F2=F1;L2+O1;L2)
=IF(F2=F3;” “;IF(F2=F1;(L2+(O1/10));L2))
but you really need the spreadsheet & data in front of you to get anything from that