If you’re running a WordPress.com or WordPress.org based blog, can now have a integrated spellchecker; as Automattic has acquired “After The Deadline” – you can enable it in the Wordpress visual editor by clicking the ABC button with the green checkmark (WordPress.org get plugin here). After the Deadline’ll analyze your post as you write it and highlight potential errors with an underline (red for spelling, green for grammar, blue for style), similar to grammar and spell checkers in word processing software. Clicking on a highlighted word or phrase’ll reveal the suggested correction, tell you why it’s suspected to be an error, and allow you to accept or ignore it.