Now there are some paid and free addons that offer guides for leveling, pets, professions, etc. and the most known ones are Zygor, Dugi and WoW Pro:
- http://www.zygorguides.com/archive/ - http://www.ultimatewowguide.com/forum/forumdisplay.php?16-Announcements - http://wow-pro.com/
These links above will direct you to their latest versions, which you might not want if you're nor playing retail. You want specific versions for Vanilla, TBC, MoP, Cata and WoD. Now WoW Pro is free and the most limited one. I never seen a Dugi one and there are some Zygor ones floating in the newsgroups.
I hate paying for these relative small files and I hate subscription based addons even more. The old versions we seek are not worth a subscription fee or a full cost anyway. Let's face it we play on a private server for free with occasionally a shop transaction. If someone has any links he/she wants to share here that would be great.
If you know someone with access to a pay (news) server he/she might be able to get ZygorGuides 5.0.13996 or 6.0.14481 (latter being Legion). With all the torrent sites being taken down, that's all there is. I never could find any version of Dugi. Zygor did put some protection in their latest addon, but that is not too difficult to fix (don't ask as that is not the topic here)