diff --git a/guildService.go b/guildService.go
new file mode 100644
index 0000000..01a2189
--- /dev/null
+++ b/guildService.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+)
+
+type GuildService struct {
+	db *DB
+}
+type GuildServiceQuery struct {
+	Name *string `db:"name"`
+	ID   *int64  `db:"id"`
+}
+
+func (gs *GuildService) Query(query GuildServiceQuery) (Guild, error) {
+	guild := Guild{}
+	sqlQuery := "SELECT id, name FROM guild"
+	whereQuery := BuildWhereQuery(query)
+	if whereQuery != "" {
+		sqlQuery += " " + whereQuery
+	}
+
+	err := gs.db.readConn.QueryRow(sqlQuery).Scan(&guild.ID, &guild.Name)
+	if err != nil {
+		return guild, fmt.Errorf("failed getting guild for query %q: %v", sqlQuery, err)
+	}
+
+	return guild, nil
+}
+
+func (gs *GuildService) Create(name string) (Guild, error) {
+	guild := Guild{}
+	res, err := gs.db.writeConn.Exec("insert into guild (name) values (?)", name)
+	if err != nil {
+		return guild, fmt.Errorf("failed to insert guild: %v", err)
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return guild, fmt.Errorf("failed to get last insert id: %v", err)
+	}
+
+	return gs.Query(GuildServiceQuery{ID: &id})
+}
+
+func (gs *GuildService) GetOrCreate(name string) (Guild, error) {
+	guild := Guild{}
+	guild, err := gs.Query(GuildServiceQuery{Name: &name})
+	if err != nil {
+		guild, err = gs.Create(name)
+		if err != nil {
+			return guild, fmt.Errorf("failed creating guild: %v", err)
+		}
+	}
+	return guild, nil
+}
diff --git a/noteService.go b/noteService.go
new file mode 100644
index 0000000..c4b5980
--- /dev/null
+++ b/noteService.go
@@ -0,0 +1,46 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+type NoteService struct {
+	db *DB
+}
+type NoteServiceQuery struct {
+	Timestamp *string `db:"timestamp"`
+	PlayerID  *int64  `db:"player"`
+	ID        *int64  `db:"id"`
+}
+
+func (ns *NoteService) Query(query NoteServiceQuery) (Note, error) {
+	note := Note{}
+	sqlQuery := "SELECT id, content, timestamp, player FROM note"
+	whereQuery := BuildWhereQuery(query)
+	if whereQuery != "" {
+		sqlQuery += " " + whereQuery
+	}
+
+	err := ns.db.readConn.QueryRow(sqlQuery).Scan(&note.ID, &note.Content, &note.Timestamp, &note.Player.ID)
+	if err != nil {
+		return note, fmt.Errorf("failed getting note for query %q: %v", sqlQuery, err)
+	}
+
+	return note, nil
+}
+
+func (ns *NoteService) Create(content string, timestamp time.Time, player Player) (Note, error) {
+	note := Note{}
+	res, err := ns.db.writeConn.Exec("insert into note (content, timestamp, player) values (?, ?, ?)", content, timestamp, player.ID)
+	if err != nil {
+		return note, fmt.Errorf("failed to insert note: %v", err)
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return note, fmt.Errorf("failed to get last insert id: %v", err)
+	}
+
+	return ns.Query(NoteServiceQuery{ID: &id})
+}
\ No newline at end of file
diff --git a/playerService.go b/playerService.go
new file mode 100644
index 0000000..b124d7c
--- /dev/null
+++ b/playerService.go
@@ -0,0 +1,54 @@
+package main
+
+import "fmt"
+
+type PlayerService struct {
+	db *DB
+}
+type PlayerServiceQuery struct {
+	Name *string `db:"name"`
+	ID   *int64  `db:"id"`
+}
+
+func (ps *PlayerService) Query(query PlayerServiceQuery) (Player, error) {
+	player := Player{}
+	sqlQuery := "SELECT id, name, guild FROM player"
+	whereQuery := BuildWhereQuery(query)
+	if whereQuery != "" {
+		sqlQuery += " " + whereQuery
+	}
+
+	err := ps.db.readConn.QueryRow(sqlQuery).Scan(&player.ID, &player.Name, &player.Guild.ID)
+	if err != nil {
+		return player, fmt.Errorf("failed getting player for query %q: %v", sqlQuery, err)
+	}
+
+	return player, nil
+}
+
+func (ps *PlayerService) Create(name string, guild Guild) (Player, error) {
+	player := Player{}
+	res, err := ps.db.writeConn.Exec("insert into player (name, guild) values (?, ?)", name, guild.ID)
+	if err != nil {
+		return player, fmt.Errorf("failed to insert player: %v", err)
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return player, fmt.Errorf("failed to get last insert id: %v", err)
+	}
+
+	return ps.Query(PlayerServiceQuery{ID: &id})
+}
+
+func (ps *PlayerService) GetOrCreate(name string, guild Guild) (Player, error) {
+	player := Player{}
+	player, err := ps.Query(PlayerServiceQuery{Name: &name})
+	if err != nil {
+		player, err = ps.Create(name, guild)
+		if err != nil {
+			return player, fmt.Errorf("failed creating player: %v", err)
+		}
+	}
+	return player, nil
+}