Add punctuation: There is also the problem of costs
A: There is also the problem of costs.

Add punctuation: They are a UK based web hosting domain registration and colocation company
A: They are a UK based web hosting, domain registration and co-location company.

Add punctuation: As Heimdal in the Nordic Mythology had his horn the archangel Gabriel who accompanies the blessed souls into Paradise had a trumpet and people started to picture angels with trumpets
A:
As Heimdal in the Nordic Mythology had his horn, the archangel Gabriel (who accompanies the blessed souls into Paradise) had a trumpet, and people started to picture angels with trumpets.