Speak for yourself
Linking to sources is fine, but most visitors came to visit your blog or site to know what your take is on something, not to read what Wikipedia or Anime News Network thinks.

Take a step back to have a better look
After writing your blog entry, don’t publish it yet. Take a step away for a few hours or even a few days. When you return the post will seem fresh and you’ll be better able to see mistakes, grammar errors, and areas that can be expanded on better.

Easy reading for tl;dr posts
Large detailed and informative posts can be amazing, but many times they aren’t easy to read. Perhaps try to have a summary of what is said at the start or end for readers to better know what the wall of text is about. Maybe bold key points or experiment with separating the different aspects of the post better.

Be easy to find…and easy to find again
Show off that you have RSS feeds, add a feature that allows people who comment to know there are new comments for entries they commented on, or have a Twitter to interact with readers and other anime and manga bloggers.

Know who you’re attracting
Most blog software, hosts, and such have ways of finding out which sites linked to you and what search engine terms people used to find your site. Knowing who your readers are can help you fulfill the needs ‘n wants of your current readership. If you’re an anime fan from Thailand, you can include bits or whole posts that effect your area. Having a post about a new manga scanlation group on a blog that mainly discusses licensed manga will be a turn off for many.

Be appreciative
Reply to comments, add a latest comment widget to a sidebar, comment on reader’s blogs, or contact them. To add to this, don’t make it difficult to leave comments with registrations or heavy duty spam prevention. You’re showing appreciation because you do appreciate what they say.

Be an epic win
Spice up your adjectives, be current, tap into nostalgia, decide to write casual or professional, give personal experiences, know when to add images, have contests, give things, and most importantly be an interesting writer. Feel free to take up designing graphics, using a digital camera, or take a trip to some interesting places like conventions and events.