The organisations are hosting a seminar on 13 July to explore the issues surrounding official blogs and the PR benefits they can generate for voluntary sector operations.
Crisis director of comms and campaigning Mark Flannagan said the idea for the seminar came about after the success of the charity's 'official blogger' Jamie McCoy - a homeless man whose online musings highlighted street issues during the last election.
'We set up Jamie's blog shortly before the election and it helped us push the topic of homelessness right up the agenda,' said Flannagan.
'At one point it was required reading for a large number of MPs and election correspondents.'
Flannagan said the debate would be a good opportunity for in-house PROs and agencies working in the sector to see how blogs could be used to generate coverage and raise awareness.
'Use of blogs is something PR agencies will have to start incorporating into pitches because setting one up is cheap, relatively quick and can be promoted through usual web-based PR activity such as using the charity's official website and email newsletters,' he added.
The seminar, being held in the Thatcher Room at Portcullis House in Westminster, will feature a presentation by McCoy on his blogging experiences.