Synergy is when media is over all 3 media platforms. This is when broadcast, print and E-media are used to show all of the media products. This was a possible question for our case study last year. Examples of this could be the avengers which was a film, comic and has a website
Halo is also an example as it has a massive web presence while also having a large tv series and a comic.

Media convergence is the merging of mass communication outlets – print, television, radio, the Internet along with portable and interactive technologies through various digital media platforms.

Media convergence allows mass media professionals to tell stories and present information and entertainment using a variety of media.

Converged communication provides multiple tools for storytelling, allowing consumers to select level of interactivity while self-directing content delivery.

 It is the combining of 2 or more mediums

 

 

 

 Here is a good slide I found on http://www.slideshare.net/sandraoddy2/synergy-and-cross-media-convergence-15537127
detailing the difference