If you've been given access to list articles, you'll see a button in the gray navigation bar labelled "Article Editor". From the Article Editor, you can modify and erase articles.

When browsing through articles, you can use the Keyword Search function to narrow down the number of entries to search through. You may also elect to only display articles from a specific Category, or with a specific Status. Article Manager remembers your last search settings for a while if you leave the page and return, and it may be confusing at first to only see one or two records. To show all of your records again, use the "List All" button, which resets the Keyword Search.