Some Ideas. These should all fit within 80 characters.

"logo"s:

letters:
     ____  _  ______  ____   
    / __ \/ |/ / __ \/ __/    
   / /_/ /    / /_/ /\ \       
   \____/_/|_/\____/___/


'bird':
                      ,       
                      ;\                     
                      | :     
                      | ;                                        
                     /  ;                          
                    / ,/      
                   ; /                                           
  `:;,._________,..' ;~,                                  
     `.._____..-,   ,,/`\           
              ,/"""'

text:

links:

a) list:

Docs and tutorials: https://wiki.onosproject.org/x/1oEg
Mailing Lists:      https://wiki.onosproject.org/x/oQAQ
Slack:              https://onosproject.slack.com

b) offset (works better for logo + text in two columns):

Docs and tutorials: 
https://wiki.onosproject.org/x/1oEg

Mailing Lists:      
https://wiki.onosproject.org/x/oQAQ

Slack:              
https://onosproject.slack.com

examples:

Links + original logo:

Welcome to Open Network Operating System (ONOS)!
     ____  _  ______  ____   
    / __ \/ |/ / __ \/ __/    
   / /_/ /    / /_/ /\ \       
   \____/_/|_/\____/___/
 
Docs and tutorials: https://wiki.onosproject.org/x/1oEg
Mailing Lists: https://wiki.onosproject.org/x/oQAQ
Slack: https://onosproject.slack.com
                            
Help make ONOS better! Find out how to get involved: 

   https://wiki.onosproject.org/x/rQIZ 

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown ONOS.

Links + bird:

Welcome to Open Network Operating System (ONOS)!

                    ,       
                    ;\      Docs and tutorials:                
                    | :     https://wiki.onosproject.org/x/1oEg
                    | ;                                        
                   /  ;     Mailing Lists:                     
                  / ,/      https://wiki.onosproject.org/x/oQAQ
                 ; /                                           
 `:;,.________,..' ;~,      Slack:                             
    `..____..-,   ,,/`\     https://onosproject.slack.com      
            ,/"""'          

                            
Help make ONOS better! Find out how to get involved: 

   https://wiki.onosproject.org/x/rQIZ 

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown ONOS.
Welcome to Open Network Operating System (ONOS)!

                          ,       
                          ;\                     
                          | :     
                          | ;                                        
                         /  ;                          
                        / ,/      
                       ; /                                           
       `:;,.________,..' ;~,                                  
          `..____..-,   ,,/`\           
                  ,/"""'          


Docs and tutorials: https://wiki.onosproject.org/x/1oEg
Mailing Lists: https://wiki.onosproject.org/x/oQAQ
Slack: https://onosproject.slack.com
                            
Help make ONOS better! Find out how to get involved: 

   https://wiki.onosproject.org/x/rQIZ 

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown ONOS.

 

(bird + lettering)

                    ,          
                    ;\          Welcome to Open Network Operating System (ONOS)!
                    | :        
                    | ;          
                   /  ;         Docs/tutorials: https://wiki.onosproject.org/x/1oEg
                  / ,/          Mailing Lists:  https://wiki.onosproject.org/x/oQAQ
                 ; /            Slack:          https://onosproject.slack.com
 `:;,.________,..' ;~,           
    `..____..-,   ,,/`\          
            ,/"""'                                                                
     ____  _  ______  ____      Help make ONOS better! Find out how to get involved:
    / __ \/ |/ / __ \/ __/                                                          
   / /_/ /    / /_/ /\ \        https://wiki.onosproject.org/x/rQIZ
   \____/_/|_/\____/___/       


Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown ONOS.