User Name  | Instant Messaging | Join Date | Posts | Birthday | Age | Biography | Location | Interests | Occupation | My Engineering Discipline |
| oaskanta | | 9th August 2009 | 28 | | | i am a robo-freak and a gizmo-geek!!!! | Bhubaneswar | Reading books, finding and learning new things | Student | Electronics and communication |
| ob1nit | | 15th November 2009 | 1 | | | | | | | Mechanical |
| obinsanni | | 4th August 2008 | 2 | | | | | | | Electronics & telecommunication |
| obiwankenobi | | 25th October 2007 | 1 | | | | Nagpur-India | Quizzing,Event Management,Music | Completing Graduation | Mechanical |
| Oblivion | | 9th January 2010 | 1 | | | | | | | Electrical |
| Observers | | 6th January 2009 | 1 | | | | | | | Electrical |
| Occulaadalvaw |  | 16th April 2009 | 1 | | | Man | Egypt | Occulaadalvaw | Egypt | Occulaadalvaw |
| Oda | | 14th August 2009 | 1 | | | | | | | Information Technology |
| odivya | | 5th September 2009 | 2 | | | | Chennai | | | Electronics and Communication |
| odwan |  | 20th December 2005 | 1 | | | | Dubai ,UAE | camping, desert crusing & smoking | Computer Engineering | Computer |
| ofdm | | 22nd November 2008 | 4 | | | | | | | electronics |
| ojnps_56 | | 14th January 2008 | 1 | | | | | | | Mechanical |
| ojochidem | | 2nd July 2008 | 2 | | | | | | | MECHANICAL |
| oldboy1985 | | 23rd February 2009 | 8 | | | | | | | computer |
| OliverEaton | | 10th February 2009 | 1 | | | | | | | Software |
| olloe1 | | 2nd February 2010 | 1 | | | | | | | sales |
| omanjaf | | 19th November 2008 | 1 | | | | | | | Electrical/Electronics |
| omar abdalla | | 25th September 2009 | 6 | | | | | | | Electrical communication and electronics |
| ombanginwar |  | 2nd September 2009 | 4 | December 4 | | | pusad | Reading,hacking | | Information Technology |
| Omesh3 | | 24th November 2009 | 1 | | | | | | | Computer |
| omeshkalra | | 11th January 2010 | 2 | | | | | | | Computer |
| omniscient | | 21st October 2009 | 2 | | | | | | | Electronic |
| omnix | | 26th May 2008 | 1 | | | | | | | Electrical |
| omprakash_65 | | 9th January 2009 | 1 | | | | india | reading books | student | electronics and communications |
| omtrehan | | 29th December 2008 | 2 | | | | | | | Mechanical |
| omya_816 | | 9th August 2008 | 9 | | | | | | | electronics & telecommunication |
| ondaverdeblu | | 16th January 2009 | 1 | | | | | | | biomechanics |
| ONeillyN. | | 2nd September 2009 | 3 | | | | | | | Computer |
| onkard | | 17th August 2009 | 3 | | | | | | | electronics |
| onkarsdeshpande | | 13th August 2009 | 1 | | | | | | | IT |
| ONKSSSSS | | 30th August 2009 | 26 | | | | | | | Computer |
| onlinearnings | | 27th May 2009 | 1 | | | | | | | like forums |
| only_sat | | 26th June 2007 | 1 | | | | | | | computer engineering |
| onqun | | 18th February 2009 | 1 | | | | | | | Electrical |
| ool.s | | 3rd February 2006 | 3 | | | | | | | |
| OP Nagpal | | 19th February 2009 | 1 | | | | | | | Chemical |
| optimystix | | 13th July 2009 | 98 | | | A G33K | India | spending time with my computer, reading | Student | Computer |
| oquaish | | 16th February 2010 | 1 | | | | | | | Mechanical |
| OrAnGeWorX | | 17th November 2008 | 9 | | | | | | | Telecom |
| orchid20 | | 27th May 2009 | 1 | | | | | | | telecommunication |
| orchidelic | | 4th January 2008 | 3 | | | | | | | mechanical |
| Orton39 | | 4th November 2009 | 9 | | | | | | | computre |
| Oscar | | 9th January 2009 | 1 | | | | | | | Mechanical |
| osomemac@yahoo. | | 4th November 2007 | 1 | | | | | | | electical |
| ourexam.com | | 10th March 2010 | 2 | | | | | | | Computer |
| OutputLogic | | 11th July 2009 | 1 | | | | SF Bay Area | | Engineer | Electrical |
| outsourcesquad |  | 28th April 2009 | 1 | | | Lifestyle Entrepreneur, Speaker, Author of “Secrets of Lifestyle Entrepreneurs” | United States | Lifestyle Entrepreneur, Speaker, Author of “Secrets of Lifestyle Entrepreneurs” | Lifestyle Entrepreneur, Speaker, Author of “Secrets of Lifestyle Entrepreneurs” | computer |
| overdrive | | 21st April 2008 | 1 | | | | | | | Mechanical |
| overgift | | 26th September 2008 | 1 | | | | | | | mechanical |
| overhaulin | | 11th December 2008 | 1 | | | | | | | mechanical |
