Below is a collection of useful resources, some related to moving to Sweden, others to academic life in Sweden.

Check Move to Gothenburg page. They have information about housing, working and other things in their website. They also hold events sometimes about housing, and other things.
The newbies guide to Sweden extensively covers anything you would need to know about Sweden and moving here.
Sweden.se lists 10 things you need to take care of when moving to Sweden.

Are you thinking of continuing in academia after PhDs? We recommend the "The CS assistant professor handbook" for early career researchers.
Are you curious about academic life in Sweden? We recommend the "A beginner's guide to Swedish academia" from the young academy of Sweden. Some parts like ch5 is useful to read for new people here.
The PhD Handbook - a guide for both current and future PhD students in Sweden compiled by SFS-DK, the doctoral committée of the united Swedish student unions.
Professor at CSE and current head of Department Richard Torkar wrote a blog post on how to get a PhD position in Sweden with examples from the division of Interaction design & Software Engineering. It might be of interest to future students.