Besides this thread, there will be absolutely no stickies created in the HTC Aria Development forum.
Rooting Your Aria:
[GUIDE] One Click How to Root the Aria with Unrevoked 3.21
Absolute BEST root method for Aria: Unrevoked team's Root/Recovery reflash tool
NOOBZ: The EASY guide to rooting your Aria and Installing Attn1's ROM (Win XP/Vista)
New clarified method for rooting the HTC Aria (for those who are having trouble)
A step by step guide to rooting and installation of liberated Aria/froyo/cyanogen
For Rooting and Other Issues
Method for 100% factory restore, unrooted
Aria Software Modifications: (NOTE: requires root access)
Guide to enabling application sideloading
Enabling Live Wallpapers
Working Wireless Tether
Alternate method: Removing Bloatware
A2SD (Apps2SD) v2.7 Update 3r1 on Aria
Workaround for Fixing 'Unsupported Sources'
Working Wireless Tether for Rooted Aria
Alternative method: Removing bloatware
Changing Boot Screen animation
Aria All-In-One Guide:
(GUIDE) Aria Superthread
Aria ROM Rollup Thread:
(ROMs) Collection Thread
More to come soon........