This anime DDL site is pretty much self-explanatory, I think. Similar to sites like BleachTV, the site focuses completely on Death Note alone - providing both streaming episodes and direct download of all the episodes via Megaupload.

1) Death Note TV

• Megaupload (Free File Host) General Speed: Average
• Content: All episodes of Death Note released so far.
• Update Frequency: As Soon as a New Episode is Released.
• Video Format: .avi (HQ)
• Note: Hassle-free, i.e. registration and forum posting not required to access downloads.

Here’s an anime direct download forum for those of you with a deeply ingrained posting habit. They have quite a bit of content, but only a few episodes won’t require you to rack up non-spam forum posts.

While gaining access to ongoing series will only cost you 10 forum posts, getting to the completed series section will set you back by at least 100 forum posts. They do have some (only recent eps of Naruto and Bleach) hassle-free anime episodes on YouTube for your streaming pleasure though.

1) Anime Capsule

• Media Server Speed: Average
• Media Server Content: 13 ongoing (e.g. Ouran, Kiba, Utawarerumono, etc.) and 11 completed (e.g. Trigun, DN Angel, FLCL, etc.) anime series, plus 2 movies (FF7, Cowboy Bebop Movie).
• YouTube Content: Recent episodes of Naruto and Bleach.
• Forum Posts Required to Access Downloads: None for the most recent Bleach and Naruto episodes, as well as their streaming media. 10 posts for ongoing series. 100 posts for completed series. 500 posts for Trigun (anything else?). Yeah, that’s 2 zeroes.
• Forum Posts Per Download: None
• Update Frequency: Above Average
• Video Format: .rm, .rmvb (LQ to MQ) or .avi (HQ)
• Note: Free registration required (e-mail confirmation not required). Forum posting required to access most downloads (i.e. everything except the latest episodes of Bleach and Naruto).

Os2 Anime - a component of sorts of Keiichi Anime Forever - aggregates anime episodes hosted on YouTube, providing a one-stop area to watch anime online, i.e. stream anime.

It has a large collection of anime series, and this collection was built ground up from admin (primarily) and user submissions - rather than through blatant link copying from other sites (which some YouTube-powered anime sites have done).

In fact, its collection has decreased substantially (137 series, to be exact) due to link copying by other sites (which was then discovered by CNET and then, by YouTube).

Note: This isn’t a direct download site. It’s an “anime streaming site” (any better name?), so some criteria judged below may not be completely relevant or in the same context as a normal direct download site. For example, speed here would refer to the speed of buffering and streaming, rather than download speed Edit: Although it’s an anime streaming site, it seems that its possible to actually download the anime from YouTube using the VideoDownloader Firefox extension or site (thanks to LewdishLoki for the tip).

1. Os2 Anime

• YouTube Speed: Above Average to Quite Fast (based on general consensus rather than my own testing)
• Content: 162 ongoing (e.g. TOKKO, Gakuen Heaven, xxxHolic, etc.) and completed (e.g. Trigun, Tokyo Underground, Tokyo Mew Mew, etc.) anime series and movies (e.g. Final Fantasy VII: Last Order, Initial D 3rd Stage, etc.).
• Update Frequency: Unknown
• Video Format: YouTube format (but if you download it using the VideoDownloader extension or site, you’ll get a .flv file)
• Note: Hassle-free site, i.e. no registration or forum posting required to access anime. Anime is streamed directly, and must be watched online. Episodes cannot be downloaded. As such, for slow connections, this service isn’t suitable as a lot of buffering and re-buffering might be required in order to watch an episode. (Refer to edit made above)

Edit: Post corrected based on info from 98s.