Photo credit: Antonis Papantoniou

1. Xcellery: Web-based online spreadsheet editing service allows you to edit your Microsoft Excel documents with other people
2. Mundu IM: Instant messaging application allows you access IM networks from your mobile phone
3. Zync: Yahoo! Messenger plug-in allows you to watch synchronized online videos with your friends
4. Online Status Indicator: Online service lets you put a small image on a web page to show if you are online on IM networks

1. Xcellery
   
   Xcellery is a web-based service that provides multi-user online editing capabilities for Microsoft Excel. Unlike other online spreadsheets, Xcellery allows you to edit collaboratively a spreadsheet either inside Microsoft Excel or inside Xcellery, online or offilne. Free
   http://www.xcellery.com/





2. Mundu IM
   
   Mundu IM is an instant messaging application which lets you connect to Windows Live Messenger, Yahoo, AIM, ICQ, Google Talk and Jabber from your mobile phone. It also offers photo sharing, file transfer, email notifications and smart group management. You can try it out or buy the full version for $11
   http://messenger.mundu.com/





3. Zync
   
   Zync is a free plug-in for Yahoo Messenger that allows to share videos from Yahoo!, YouTube and Google Video in a synchronous manner directly into to the conversation window. You can pause, forward or rewind, and the two videos will always remain in sync. It works on Windows machines only
   http://timetags.research.yahoo.com/zync/





4. Online Status Indicator
   
   Online Status Indicator is a service that lets you put a small image on a web page to show if you are online on instant messenger networks, such as AOL Instant Messenger, ICQ, IRC, Jabber, MSN Messenger, Skype, and Yahoo Messenger. Use the default icons or create your own status icons. This service is completely free
   http://www.onlinestatus.org/