Snow Leopard Services

File Collector: Collect Selected Files Into A New Folder (Free — Via elasticthreads.tumblr.com)
Google Voice/SMS: Initiate a phone call or send a text message through your Google Voice account — just by selecting a phone number in any application and right-clicking! (Free — Via elasticthreads.tumblr.com)
URL Shortener: Three Services that take URLs selected in any application and creates a shortened URL (Free — Via elasticthreads.tumblr.com)
Instapaper Service: Send Link to Instapaper (Free — Via elasticthreads.tumblr.com)
Text Clippers: Several Text Clipping Services (Free — Via elasticthreads.tumblr.com)

Amazon S3 Uploader: Upload a File to Your Amazon S3 Bucket (Free — Via august.lilleaas.net)

Select Any Basic Numeric Equation And Evaluate It, Replacing The Selected Text With The Results
Songza.Fm Scraper Finds A Song Related To The Selected Text
Clippable-To-Evernote: Allows you to trigger the Clippable bookmarklet in Safari and copy the result directly to your “Unfiled” note book in Evernote. (Free — Via brettterpstra.com)

Google Text In Firefox: Search any text in Google through Firefox. (Free — Via nullweb.com)

Textmate Services: TxtToTM sends text selected in any application and opens a new TextMate window with that text inserted. Edit in Textmate will open any file or folder selected in Finder in Textmate. (Free — Via macromates.com).

THINGS/Apple Mail Linking: A service for Mail to link the selected message to Things to-do list. (Free — Via culturedcode.com)

Post to Dropbox Service: Files will be put into your Dropbox public folder, auto-synched and the URLs to these files will be put in the clipboard. (Free — Via dropbox.com)

Creating a ‘Make Title Case’ Service in Snow Leopard: A system-wide service for converting text to title case — utilizing John Gruber’s TitleCase script. (Free — Via seansperte.com)

KavaServices: A Bundle of Many Services that translate languages, move and copy files to particular folders, search websites, encode special characters into HTML entities/URL links, calculate mathematical expressions, convert currencies and other units, sort lines, remove duplicates, remove blank lines, convert to lowercase, uppercase or title case, convert accented characters to plain ASCII text, calculate MD5 and SHA1 checksums, execute terminal commands, etc. ($25 — Via kavasoft.com)