Books:
Iambus (Singapore, 1994)
First Words (ed., Singapore, 1996)
The Enclosure of Love (Singapore, 2001)
Means To An End (Singapore, 2008)

Periodicals:

UK: Acumen, Chanticleer, Coffee House Poetry, Dream Catcher, Fabric Poems, The Journal, Lamport Court, London Magazine, London Review of Books, Madelaine, Orbis, Oxford Poetry, The Reader, Smoke, Snakeskin, Staple, Weyfarers, Zero.

Europe: Ars Interpres (Sweden), Poetry Ireland Review (Eire), Poetry Salzburg Review (Austria), The SHOp (Eire)

USA: Asheville Poetry Review, Asian Journal, Atlanta Review, Blue Moon Review, Cider Press Review, The Drunken Boat, The MAG, 91st Meridian, Santa Clara Review, The Stonefence Review, Wild Plum Poetry, Word Riot

Australia/New Zealand: Blackmail Press (NZ), Jacket (Australia), Mascara (Australia), papertiger (Australia), Stylus Poetry Journal (Australia)

Asia: Poetry Billboard (Singapore), Singa (Singapore), Softblow (Singapore), Straits Times Life! (Singapore), Yuan Yang, Hong Kong

Anthologies:
Capsule, Singapore; DiVerseCity, USA; Dialogue Between Civilisations, USA; First Words, Singapore; From Boys to Men, Singapore; Love Gathers All, Singapore; In Our Own Words, USA; Island City, UK; Language for a New Century: Contemporary Poetry from the Middle East, Asia, and Beyond, USA; Mind The Gap, USA; No Other City, Singapore; onewinged, Singapore; Over There: Poems from Singapore and Australia; Oxford-Cambridge May Anthologies, UK; Zouk: the Book, Singapore

Festivals:
Ars Interpres Poetry Festival, Sweden
Austin International Poetry Festival, USA
Edinburgh International Book Festival, UK
Festival franco-anglais de poésie, France
Kuala Lumpur International Literary Festival, Malaysia
Marché de la poésie, France
Queensland Poetry Festival, Australia
Singapore Writers' Festival, Singapore
Ubud Writers' and Readers' Festival, Indonesia
Wordfeast, Singapore (organiser)
Writers' Week, Singapore

Sample links:
Ars Interpres: The Internment of Snails and intro to Singapore poetry
Blue Moon Review: Gamelan
Business Times: Undaunted S'pore Voices at Edinburgh
The Drunken Boat: Three Poems
Guardian Unlimited Books: Thinking Back
Hutt: Rain
Jacket: Interview with Bob Perelman, also here
KAOS-FM: Conversation with Leonard Schwartz, Alvin Pang and Yong Shu Hoong on Cross-Cultural Poetics (scroll to #23).
London Review of Books: Durians
The MAG: What Work Fulfils and Solitaire
Marché de la poésie listing
Mascara: Some Poems
National Book Development Council of Singapore: Profile
91st Meridian: Oil, originally here
Poetry News (Spring 2004): Poetry in Singapore
Postcolonial Web: Profile and sample poems
QLRS: Profile and work
Scottish Arts: EIBF summary
Select Books: The Enclosure of Love available online
SG Ezine: When the Great Singapore Novel?
Softblow: Four Poems
Staple: Disclaimer
Stylus Poetry Journal: Swear Words and Before the Flight
Time Based Media: Film of Station Lights
Tidskrift: Rich Fare From Unexpected Places and event listing in Swedish
Verbosity: Statement Against the Invasion of Iraq