Timothy Luoma's 30 days series gives a brilliant overview of all Opera7 options.

Free tools for power surfing. Each tool is a small JavaScript application which you can bookmark directly from the page and use from your Bookmarks or Hotlist.

Security vulnerability in Opera 6.01 and 6.02. Describes how a character entity can be used to upload an arbitrary local file to a remote server, without the user's knowledge.

Freeware programs by Josef W Segur, including OFE and O4FE, opera file explorers, also OpWic, an Opera windows controller.

Opera's RPM install for Linux is missing the libXm.so.2 libraries. Installing Lesstif first will correct the issue.

Skins for Opera, forums, links, polls and daily comic.

Bugs found in any version on any platform can be reported here.

Various button sets for Opera.

Lots of bug fixes and tweaks for the mail client in Opera. You need to be competent with a hex editor, but the fixed files are also downloadable.

Answers frequently asked questions regarding Opera for Linux. Many of the tips and tricks are applicable to all platforms, such as how to customize search queries and URL filtering.

Information and news about Opera's web browser for smartphones and PDAs.

Information including FAQ sections, bug lists and reviews for Opera 5 and 3.62 for the Symbian platform.

Opera mailing lists.

A tool to customize the search-function in Opera, to add favorite search engines.

Producers of the fast, small, reliable Opera Browser for multiple platforms. Features include mail, news and ICQ clients, rss, IRC, projection mode, WML support, mouse gestures and extensive keyboard support.

An independent FAQ compiled from regular questions and answers posted to the Opera mailing list.

The latest news on the Opera browser and its competition.

Changelogs for the Opera web browser.

Information to help you if you have a specific problem or a technical question about using Opera.

A collection of information relating to tips, customization, and technical details of the Opera web browser

Explains what all the entries in Opera's search.ini mean and how to add custom search engines.

A presentation authoring tool. The presentations are displayable with the Opera web browser in OperaShow mode.

The Opera Wishlist (list of requested features) and links to articles, FAQs, and other resources, maintained by Opera Software's Sue Sims.

Discussion and essays about the Opera browser.