Actually, one use I got out of Street Legends was a database of example Knowledge Skills. To some extent, I wish an editor had gone through and streamlined them so they'd all follow the same format, but in general I was happy to use it as a list to supply my players with. There were a few raised eyebrows concerning some of the knowledge skills listed (I alphabetized them and they don't know who has what). Actually, here's the list:
(City) Area, (City) Developer Consortium, (City) Safehouses, (City) Sprawl, (City) Street Gangs (District), (City) Streets, (City) Politics, (Corp) Corporate Structure, (Corp) Gossip, (Corp) Personnel, (Corp) Tech, (Corporation), (Mafia) Politics, (Mafia) Traditions, (Metahuman) Anatomy, (Nation) Corporations, (Nation) Gangs, (Nation) High Society, (Nation) Military Techniques, (Nation) Nobility, (Nation) Professional League Baseball, (Nation) Street Gangs, (Nation) Politics, (Nation) Rock Music, (Religious) Church, 20th Century Science Fiction, 21st Century History, Ancient Texts, Ancient Civilizations, Ancient Mythology, Area Knowledge (City), Arcanoarchaeology, Archaeology, Architecture, Art Fences, Art Styles, Art History, Artificial Intelligences, Assassination Techniques, Astral Research, Banking, Baseball, Baseball Stats, Biology (Race), Border Patrol Tactics, Bug / Insect Spirits, Business (Type), Business Practices, Bully Tactics, Cartel Structure, Chemistry, Chess, Classical Art, Classical Literature, Classical Music (Instrument), Club Music, Comic Books, Conspiracy Theories (Focus), Corporate History (Corporation), Corporate Politics, Corporate Surveillance Techniques, Corrections Systems, Criminal Hideouts, Criminal Psychology, Combat Biking, Combat Biking Leagues, Computer Hardware, Computer History, Computer Software, Corporate Politics (Corporate Court), Corporate Security, Data Havens, Design (Focus, eg: Spell), Diplomacy, Dracoforms, Draconic History, Dragon Etiquette, Dragon Society, Dragons (Type), Eco Groups, Economics, Engineering, Espionage, Fashion, Fine Cuisine (Type), Fine Resturaunts, Firearms Manufacturers, Fixers, Folk Music (Native American), Futurist Theories, Gang Identification, Gardening, Geography, Handgun Manufacturers, High Society (City), History (Nation), Image Crafting, International Politics, Japancorps, Jungle Ecology, Languages: Egyptian Heiroglyphics, Law (Nation), Law Enforcement Organizations, Law Enforcement Procedures, Law Enforcement Strategies, Literature, Linguistics, Magic Background, Magic Trids, Magical Artifacts, Magical Groups, Magical History, Magical Knowledge, Magical Phenomenon, Magical Politics, Magical Security, Magical Theory, Magical Threats, Matrix Design, Matrix Hardware, Matrix Programs, Matrix Security Design, Matrix Security Procedures, Matrix Security Techniques, Matrix Groups, Matrix Architecture, Media, Mercenary Groups, Mercenary Units, Metahuman Architecture, Metahuman Culture, Metahuman Customs, Metahuman History, Metahuman Laws, Metahuman Magic Groups, Metahuman Psychology, Metaphysics, Metaplanes, Mid-20th Century Music, Military (Nation), Military Psychological Operations, Military Tactics, Motorcycle Manufacturers, Mystic Legends, Orc Underground, Origami, Parabotany, Parazoology (Focus, eg: HMHVV), Philosophy (Era, Focus: eg Political), Poison Antidotes, Police Procedures, Political Communications (Focus), Private Art Collectors, Psychology (Focus: eg: Vampires), Public Relations, Public Relations Techniques, Public Speaking, Reagents, Runner Groups, Runner Hangouts, Runner Hideouts, Runner Networks, Security Design (Corporation), Security Procedures (Corporation), Security Providers, Security Protocols (Group), Security Theory, Shadowrunner Lore, Singularity Research, Small Squadron Tactics, Smuggler Routes (Nation), Smuggling Havens (Nation), Sociology, SOTA Security Systems, SOTA Technology, Spirits, Street Drugs, Street Gangs, Street Knowledge (Location Shadows), Tradecraft, Underworld Politics, Vampire Lore, Virology (Type), Wanted Criminals, Weapons Manufacturers, Wines, World Geography, Wuxia Action Trids, Yachting.
The ones with ( ) at the front presume you'll pick the specific field as part of the knowledge - not as part of a specialization. So (City) Street Gangs would be 'Seattle Street Gangs' as a general knowledge, rather than as a specialization. Notice Area Knowledge has a specialization of (City), rather than being (City) Area Knowledge, which would presume you have knowledge of a specific area as a general skill. I know... like I said, a bit strange. There's also (Nation) High Society (not a specialization), and High Society (City), where 'City' is a specialization. (You'd think it'd just be 'High Society (Nation, City)'. Anyway, I hope this is useful.