IV. Auxiliary Domains

Is it worthwhile to reserve auxiliary domains?
Generic auxiliary domains
Similar domains. How do I guarantee that my customer will find me?
Similar extensions
The choice of singular or plural
Homophones
Words with alternative forms
Silent consonants
Similar words
Spelling mistakes
Typos
Hidden definite articles
Without the dot that separates the www
The use of hyphens
The use of abbreviations
The use of numbers
Domains with English words
Auxiliary extensions
Accent marks
Reservation of IDN domains
Differences between gTLD and ccTLD IDNs
Summary