Hacks and Apps

Downloaders (your photos from SmugMug back to you).

SmugDAV - mount your SmugMug account on your local computer. Works with Mac or Windows.
FriendSync - Download your friend's SmugMug gallery
smugget - shell script for command line downloading (Linux/Unix)
Star Explorer - Excellent powerful and robust uploader, downloader and all-round helpful tool.

Uploaders (your photos from you to SmugMug).

Picasa Uploader - that's right, upload directly from Picasa!
Adobe Photoshop Family - Elements 5/6, CS3 - how to upload
Lightroom export plugin for SmugMug
iPhoto Plugin - easy and very cool uploading direct from iPhoto!
Send To SmugMug - Excellent Windows-based upload tool.
Star Explorer - Excellent powerful and robust uploader, downloader and all-round helpful tool.
F-Spot - Personal photo management for the GNOME Desktop
SmugBrowser - Firefox Extension for uploading and managing your site.
ApertureToSmugMug - direct from Apple Aperture!
- ApertureToSmugMug Help
PictureSync - Desktop uploader and IPTC annotation utility supporting Aperture, MediaPro, and iPhoto.
Komodo Drop - drag and drop application for Windows, Mac OSX and Linux
FotoFox - Firefox Extension for uploading to SmugMug.
ImageWell - The Handy Image Editor
ACDSee 10 Photo Manager - The easy way to organize, enhance and share your photos
FileUpload for SmugMug - PERL script for command line uploading
smugup - shell script for command line uploading
IMSmugTools- IMatch scripts providing integration between IMatch image management and Smugmug
FireUploader - Firefox based uploader
SnugUp - Windows based uploader

Utilities

Big SmugMug - embed your SmugMug galleries within Facebook.
bulkRegen - Mac app to bulk regenerate SmugMungous image sizes
FoxSaver - Turns idle Firefox into a photo screen saver showing your favorite photos from SmugMug.
SmugTools: Gallery Copier - Does just what it says.
Phixr - Online photo editor
SmugManager - Firefox Extension to manage your own personal site.
SmugSales - Cool spreadsheet app for SmugMug Pros.
SmugSaver - Display your SmugMug photos as your Windows screensaver
SmugViewer - integration with SharePoint - displays a slideshow of a user's most recent photos
Teramugs - a web application from terasnaps.com that performs face detection and recognition on you smugmug photos to help you organize photos based on the individuals in your images.
WalkingBoss - Mashup your SmugMug photos on a map
Piclens - cool firefox browsing plugin for SmugMug

Blogging

WordPress Plugin - Integrate photos from a SmugMug RSS feed into your WordPress blog!
WordPress Video Plugin -easily embed QT videos into your WordPress blog.
SmugWP - Insert photos from SmugMug into your WordPress blog with Lightbox 2 support. Gallery ID confirm and redirect (think DigiProofs).
SmugMug to Livejournal Posting Tool - easy web-based posting of a single image & description to your LiveJournal.
SmugMug4Writer - Windows Live Writer plugin. Allows you to easily insert images into your blog posts.
SmugPostr - WordPress plugin
smugmugRSS - WordPress plugin for integration with SmugMug feeds
MediaWiki- This extension allows embedding images from SmugMug into a MediaWiki wiki.
Smugmug Gallery - Another Windows Live Writer Plugin, allows you to create galleries that autoresize. Uses the new security keys.

Service Migration

SmuggLr- Flickr, Yahoo!, Zenfolio to SmugMug migration tool, awesome!
Migratr - migrate your photos from popular sharing services. If SmuggLr won't do it, Migratr might!
Pbase2Smugmug - migrate from Pbase to SmugMug!
Gallery Album to SmugMug - Convert Gallery 1.x or 2.x albums to SmugMug, complete with category/subcategory creation and captions.

Scripts and Widgets

GreaseMonkey script for adding thumbs to StatCounter
GreaseMonkey script for bulk thumbnail zooming
PHP script for uploading recent photo to flickr
RandRenderer, javascript widget for browsing SmugMug galleries from any webpage
SmugSSP - PHP script for integrating SmugMug with SlideShowPro
PHP script for SmugMug integration with MediaWiki
FileUpload for SmugMug - PERL script for command line uploading
Gallery2 Album Upload to SmugMug - PERL script for command line uploading full albums from Gallery2
smugup - shell script for command line uploading
smug_screenshot - OSX shell script for screenshot uploading
SmugBadge - lets you create SmugMug Badges
MagONE- Flash based widget you can embed in any site your public SmugMug galleries

Toolkits and Frameworks