There is 3, but one is inactive. Nerf Blaster Wiki has only one contributor, but the other one has lots. Nerf Blaster wiki has more pages though.
It depends on which site. NerfHQ Wiki is accurate, but provides little information. The NerferWiki is pretty much a rehash of NerfHQ Wiki. The two Wikia wikis are the most accurate. Nerf Blaster Wiki has a lot of small pages, but includes info about non-nerf, old blasters, accessories and Super Soakers. Nerf Wiki has less pages, but has more users and pages about new weapons and accessories, however there exists no info about non-nerf or old Super Soakers.
Nerf Blaster Wiki provides a good list of blasters. Here's the link. http://nerfipedia.wikia.com/wiki/List_of_Nerf_Blasters
The SwarmFire was rated 9/10 on Nerf Wiki from Wikia, in which it received 10/10 in reliability and capacity.
There are several Wikis around that have quite a bit of information on all Nerf blasters that have been released. In my opinion, the best is: http://nerf.wikia.com/wiki/Main_Page
For everything but the Lanard and Scatter Blast products you should check out Nerf Wiki, as they are quite reliable. For everything but the swords, axes and shields check out Nerf Blaster Wiki, which along with Nerf covers Lanard, Buzz Bee, Koosh, Larami, Super Soaker, Power Popper, Marshmallow and Cyclone Shoot among a few to name.
There is Nerf basketball, Nerf swords, Nerf guns, Nerf footballs all sorts
no its Nerf Nerf means not much power
No. Nerf has had no plans for a Nerf movie, although countless users on Youtube have had their own imaginings of Nerf movies such as Nerf War II and Nerf Assassination. Maybe if there is enough support, Nerf will release a movie due to popular demand.
the Nerf wild fire or the Nerf powerclip
There is Nerf shields and Nerf dart tag vests.
Nerf alpha trooper
Nerf shark