Custom Menu
Add a custom menu to your sidebar. As your content builds up you'll probably want to create a custom menu.You can put your About Me, Privacy Policy and Affiliate Disclosure pages into a custom menu under the heading 'About Domain Name.com', if you wish. Menus are a big subject so I recommend doing the step-by-step training here at WA and tackle menus when the time is right. It's not a good idea to skip ahead.
Meta
Login, RSS, & WordPress.org links. You may want to use this Widget if you have a membership site otherwise delete it. You're probably the only person who has login privileges and you know how to get into your Dashboard without this. It can confuse your visitors.
Pages
A list of your site’s Pages. Up to you if you want to use this or you may prefer a Custom Menu.
Next Page: Recent Comments, Recent Posts and RSS Widgets
Page 5: Search, Tag Cloud and Text Widgets